WorksheetsReaps de Ciencia
Total questions: 151
Worksheet time: 1hrs 16mins
Name
Class
Date
1.
What is anything that uses electricity to operate. (light bulb, computer, etc.)?
a)
load
b)
loaded
c)
watts
d)
electricity
2.
What is a device for making, breaking, or changing the connections in an electrical circuit?
a)
cambia
b)
switch
c)
cord
d)
option
3.
What is called any living thing?
a)
chemical
b)
non organic
c)
organic
d)
organism
4.
what is a characteristic that is passed from parent to offspring?
a)
uninherit trait
b)
inherit trait
c)
heredity
d)
hour
5.
what is the entire span in the life of an organism from one generation to the next?
a)
life
b)
life cycle
c)
death
d)
people
6.
What is a unique feature of an organism that best helps it survive in its environment?
a)
species
b)
specialized structure
c)
original structure
d)
old structure
7.
What is a group of individuals that belong to the same species and live in the same area?
a)
population
b)
popular
c)
unpopular
d)
people
8.
What is a magnet made from a material that easily loses its magnetism, such as an electromagnet?
a)
original magnet
b)
magnets
c)
temporary magnet
d)
repel
9.
what is a collection of electrons. The charges don't move?
a)
electricity
b)
static electricity
c)
electric
d)
electricity
10.
What is a (Physical) Characteristics of a substance that can be observed, measured, or changed and used to identify matter.
a)
properties
b)
proper
c)
present
d)
past
11.
What is static electricity?
a)
movement
b)
A collection of electrons. The charges don't move.
c)
electrons
d)
electricity
12.
What is a permanent magnet?
a)
un mango
b)
un man
c)
un iman
d)
A magnet made of material that keeps its magnetism
13.
What is magnetic field?
a)
The area of magnetic force around a magnet
b)
manos
c)
lineas
d)
un campo
14.
What is magnetic force?
a)
polos
b)
The attraction or repulsion between magnetic poles
c)
polls
d)
poultry
15.
What is deposition?
a)
Process in which sediment is laid down in new locations.
b)
un juego
c)
un juez
d)
un jugo
16.
What is matter?
a)
materiales
b)
Anything that has mass and takes up space
c)
tamales
d)
timeless
17.
What is gas?
a)
volume
b)
A state of matter with no definite shape or volume
c)
matter
d)
liquid
18.
What is a conductor?
a)
chofer
b)
A material that allows electricity to pass through it.
c)
Camion
d)
carro
19.
What is a solid?
a)
un vapor
b)
lion
c)
volume
d)
A form of matter that has a definite shape and volume
20.
What is a complete circuit?
a)
dos
b)
The path of an electric current from the power source through conductors to the load and back to its original source.
c)
un foco con alambres
d)
un foo con hombres
21.
What is a compass?
a)
A device that uses Earth's magnetic field to attract a free floating needle to point North.
b)
comal
c)
coal
d)
koala
22.
What is a liquid?
a)
definite volume but no definite shape.
b)
A state of matter that has a definite volume but no definite shape.
c)
A state of matter
d)
shape.
23.
What is a magnet?
a)
Any material that produces a magnetic field.
b)
Any material
c)
Any material
d)
magnetic field.
24.
What is a compass?
a)
A device that uses Earth's magnetic field to attract a free floating needle to point North.
b)
A device that uses Earth's magnetic field to attract a free floating needle to point East.
c)
A device that uses Earth's magnetic field to attract a free floating needle to point South.
d)
A device that uses Earth's magnetic field to attract a free floating needle to point West.
25.
What is weight?
a)
expensive objects
b)
an object
c)
A measure of the force
d)
A measure of the force of gravity on an object
26.
What is an instinct?
a)
inherited behaviors of an a tree.
b)
inherited behaviors of an organism.
c)
inherited behaviors of an apple.
d)
inherited behaviors of an oso.
27.
What is an insulator?
a)
A door that does not allow electrons to move through it easily.
b)
that does not allow elephants to move through it easily.
c)
A material that allows electrons to move through it easily.
d)
A material that does not allow electrons to move through it easily.
28.
What is a physical change?
a)
A change in a substance that does not involve a change in the identity of the substance. (no new house is formed)
b)
discharge in a fruit that does not involve a change in the identity of the substance. (no new substance is formed)
c)
A change in a substance that does not involve a change in the identity of the substance. (no new substance is formed)
d)
no change in a substance that does not involve a change in the identity of the substance. (no new substance is formed)
29.
What is a chemical change?
a)
A change in matter that produces one or more new flavors. An unexpected change (for example state of matter, energy, color, or light)
b)
A change in matter that produces one or more new strawberries. An unexpected change (for example state of matter, energy, color, or light)
c)
A change in matter that produces one or more new substances. An unexpected change (for example state of matter, energy, color, or light)
d)
A change in matter
30.
What is an inherit behavior?
a)
a behavior that has legs.
b)
inherited from parents.
c)
experience or observation.
d)
parents.
31.
What is an acquired trait?
a)
A trait that is not in your genes but is picked up from enviornmental tacos
b)
A trait that is not in your genes but is picked up from enviornmental factors
c)
A trait that is not in your genes but is picked up from enviornmental tractors
d)
A trait that is not in your genes but is picked up from enviornmental fractions
32.
What is a substance?
a)
A single kind of matter that is pure
b)
A single kind of meat that is pure
c)
A single kind of mango that is pure
d)
A single kind of cake that is pure
33.
What is a magnetism that results from an electric current?
a)
electric
b)
electricity
c)
electromagnetism
d)
power
34.
What is a variation?
a)
no se
b)
any difference between individuals of the same species. Variations cause adaptation among species when advantageous variations survive and organisms without legs.
c)
any difference between individuals of the same species. Variations cause adaptation among species when advantageous variations survive and organisms without head.
d)
any difference between individuals of the same species. Variations cause adaptation among species when advantageous variations survive and organisms without it die off.
35.
What is uplift?
a)
a rise of land to a higher seat
b)
a rise of land to a higher elevator
c)
when you wake up in the morning and have breakfast
d)
a rise of land to a higher elevation (as in the process of mountain building)
36.
What is a product?
a)
A chemical substance formed as a result of a one hundred dollars bill
b)
A chemical substance formed as a result of a chemical reaction
c)
A chemical substance formed as a result of a physical reaction
d)
A chemical substance formed as a reaction
37.
What is a physical change?
a)
A charge in a sum of money that does not involve a change in the identity of the substance. (no new substance is formed)
b)
A change in a substance that does not involve a change in the identity of the substance. (no new substance is formed)
c)
A change in a person's behavior that does not involve a change in the identity of the substance. (no new substance is formed)
d)
A change in a city
38.
What is a learned behavior?
a)
a behavior that has been learned from experience or observation. inherited from parents.
b)
a behavior that has been learned from experience or observation. NOT inherited from the television.
c)
a behavior that has been learned from experience or observation. NOT inherited from parents.
d)
a behavior that has not been learned from experience or observation. NOT inherited from parents.
39.
What is a trait?
a)
Characteristics of an organism
b)
organic coffee
c)
Characteristics of an apple
d)
an organism with legs
40.
A house made of toy blocks is weighed. It is taken apart and each block weighed sepa- rately. If the weight of all the blocks is added, what will it total?
a)
A. A little less than the weight of the house.
b)
B. The same as the house.
c)
C. A little more than the weight of the house.
d)
D. It would depend on how large the house was.
41.
Water is boiled in a flask with a balloon over the top. As the water heats, the balloon expands. What has happened to the weight of this flask and balloon in this experiment?
a)
A. It has increased as the balloon expands.
b)
It has decreased as the water boiled away.
c)
It has stayed the same.
d)
It is unpredictable because the balloon is flexible.
42.
5 grams of orange-drink mix is added to 100 grams of water. What would you expect the new solution to weigh?
a)
95 grams
b)
100 grams
c)
105 grams
d)
500 grams
43.
How do you know when something is a solid?
a)
A. It will pour.
b)
B. It takes the shape of its container.
c)
C. It cannot be seen easily.
d)
D. It will hold its shape.
44.
What evidence shows that ice has a physical change when left out in a room?
a)
It reacts with oxygen in the air.
b)
It changes to water.
c)
It is hard and white.
d)
It is cold to the touch.
45.
Which is a chemical change?
a)
number of pieces
b)
form
c)
size
d)
change in color
46.
Which of the tests is reversible?
a)
floating in water
b)
burning when lighted
c)
melting when heated
d)
baking a cake
47.
Bread placed in a toaster turns brown then black if left too long. What is needed for this chemical change to take place?
a)
Heat energy had to be added.
b)
Heat energy had to be taken away.
c)
A certain amount of time had to pass.
d)
The bread had to be taken out of the wrapper.
48.
A student watches an ice cube melt into a puddle of water. Has a chemical reaction taken place?
a)
Yes, a gas has been given off.
b)
Yes, the color has changed.
c)
No, water does not react chemically.
d)
No, no new substances have formed.
49.
Which of Mark’s observations would show that a burning candle is a chemical reaction?
a)
Back smoke is given off; hot gases are rising.
b)
The wax starts to melt.
c)
The candle is white and made of wax and a wick.
d)
Time passes one minute at a time.
50.
Which of Mark’s observations would show that a burning candle is a chemical reaction?
a)
A. Back smoke is given off; hot gases are rising.
b)
B. The wax starts to melt.
c)
C. The candle is white and made of wax and a wick.
d)
D. Time passes one minute at a time.
51.
Which substance had a physical change?
a)
A
b)
B
c)
C
d)
D
52.
Which of Mark’s observations would show that a burning candle has physical changes?
a)
Black smoke is given off; hot gases are rising.
b)
The wax starts to melt.
c)
The flame glows red and orange.
d)
Time passes one minute at a time.
53.
How might reactions with burning be important in your daily life?
a)
Food is grown by burning.
b)
Modern medicines depend on burning.
c)
Most clean water is created by burning.
d)
Burning fuel supplies heat for homes.
54.
Fifty (50) grams of vinegar and 2 grams of baking soda are mixed together. A bubbling reaction takes place. The mixture is weighed again and now weighs 49 grams. How do you explain the missing weight?
a)
it's the diet
b)
The gas that escaped from the mixture contained the missing weight.
c)
no red meat
d)
no dark matter
55.
A student measures the weight of an ice cube and then lets it melt. What would you expect the weight of the water produced to be? Why?
a)
no sé
b)
The weight would be the same as the ice cube. The particles of ice have changed form but none of them have gone anywhere.
c)
Preguntale a William
d)
William no sabe
56.
What does a physical property tell you about a substance?
a)
what waves like it
b)
beavers
c)
What it looks like, how it behaves.
d)
yo no sé
57.
You are cooking in your kitchen and think you have made a chemical reaction by adding two substances together. How will you know when a chemical reaction occurs?
a)
When water becomes ice and then gas
b)
When two or more substances come together to form something new. It cannot be re- versed or undone easily or energy is required or released.
c)
when gas becomes water and then liquid is the water cycle
d)
When it rains
58.
Sarah and Jake were each given a ball of clay of the same weight. Both students used all their clay to make an object. Sarah rolled hers into a ball; Jake made a long, skinny rope. What do you expect the weight of the clay figures to be now?
a)
Sarah’s weighs more because it is round.
b)
Jake’s weighs more because it is long.
c)
There is no way of knowing.
d)
The figures would be equal.
59.
Stuart measures 10 grams of water and pours it into a container and seals it with a lid. He then freezes it. A day later he takes the container out of the freezer and notices the ice is larger than before. When he takes the ice out of the container, what would he expect it to weigh?
a)
10 grams
b)
11 grams
c)
20 grams
d)
impossible to know
60.
Which of the following is NOT a physical property of matter?
a)
phase (solid, liquid, gas)
b)
hardness
c)
shape
d)
flammability
61.
Five (5) grams of salt is dissolved in 100 ml of water to form a saltwater solution. If the solution is left to sit until the water has evaporated away, how much salt would you expect to be left in the container?
a)
2.5 grams
b)
5 grams
c)
105 grams
d)
500 grams
62.
Martha decided that a physical change had occurred when the pop expanded. What evidence supports her conclusion?
a)
The can was stuck to the freezer.
b)
No new substances had formed.
c)
nada
d)
Both the pop and can were very cold.
63.
Martha wondered if all substances would do the same thing as the soda. How could she design an experiment to find out?
a)
Pour the same amount of 4 different liquids into ice cube trays. Wait one day and measure sizes.
b)
Put 1 can of soda in the freezer and 1 can in the refrigerator. Wait two days.
c)
Put 4 cans of soda in the freezer and leave overnight.
d)
Place 1 open can of soda and 1 unopened can of soda in the freezer and wait one day.
64.
Baking soda and vinegar are mixed in a bottle. A balloon placed over the top fills and expands with a gas. How do you know a chemical reaction has taken place?
a)
A solid and a liquid have been mixed together.
b)
A new substance has formed.
c)
The balloon has stretched and changed shape.
d)
The bottle has not changed.
65.
A pair of scissors left outdoors has rusted. What evidence shows that a chemical reaction has taken place?
a)
They are hard to use.
b)
The sun has warmed them.
c)
They are dirty.
d)
They have turned orange.
66.
How are fireworks examples of chemical reactions?
a)
They are made of chemicals.
b)
They change color and require energy.
c)
It is easy to reverse the explosion.
d)
They are only used for special occasions.
67.
The food we eat is nearly always cooked. Why?
a)
It has to be cooked for us to chew it.
b)
Food cannot be digested if eaten raw.
c)
Cooking makes chemical and physical changes in food.
d)
Food changes color when it is cooked and looks more appealing.
68.
Five (5) grams of baking soda and 20 grams of vinegar are added together. A bub- bling reaction starts. When it is over, the solution weighs 24 grams. Why has the weight changed?
a)
The vinegar has evaporated.
b)
A gas has formed and left the mixture.
c)
Baking soda is lighter when dissolved in vinegar.
d)
The new solution was lighter.
69.
In the spring, rocks often fall onto mountain roads. Why?
a)
The rocks have grown during winter.
b)
Ice freezes in the rock at night, cracking them.
c)
The days are longer with more light.
d)
The snow is no longer holding them.
70.
Landscape Arch in Arches National Park had to be closed to visitors hiking near the base. How could an arch become dangerous?
a)
Erosion made it possible for it to collapse.
b)
Ice could fall off of it, harming the visitor
c)
Snakes are attracted to some arches.
d)
The soil around the arch became polluted.
71.
How long has it taken for the Grand Canyon to form?
a)
100 years
b)
1000 years
c)
2000 years
d)
Over 5,000 years
72.
Many valleys in Northern Utah are U-shaped which shows a glacier carved them. How long does it take a glacier to carve a valley?
a)
less than a year
b)
10 to 20 years
c)
100 years
d)
thousands of years
73.
How do volcanoes, earthquakes, and uplift affect Earth’s surface? They create...
a)
deep ocean basins.
b)
great plains of rich soil.
c)
mountains and valleys.
d)
arctic ice caps.
74.
A seismograph is a device used to measure wave movement through Earth’s crust. What can it help predict?
a)
earthquakes and volcanoes
b)
floods and hurricanes
c)
snowstorms and avalanches
d)
drought and rainfall patterns
75.
The Grand Canyon resulted from two forces. What are they?
a)
weathering and erosion
b)
erosion and uplift
c)
earthquakes and faulting
d)
volcanoes and magma
76.
How long has it taken for the Grand Canyon to form?
a)
100 years
b)
1000 years
c)
2000 years
d)
Over 5,000 years
77.
What forces have made this butte?
a)
volcanoes and earthquakes
b)
weathering and wind erosion
c)
water erosion and uplift
d)
glaciers and ice
78.
In 100 years, how will this butte change?
a)
It will change very little.
b)
It will be half its size.
c)
It will be gone.
d)
A hole will form in the ground.
79.
What types of erosion can affect a river valley? Tell what each one does.
a)
Water erosion: Water carries rock out of the valley and digs deeper into the valley floor. Gravity: pulls rock down from the sides of the valley. Wind: blows
b)
Water erosion: Water carries rock out of the valley and digs deeper into the valley floor. Gravity: pulls rock down from the sides of the valley. Wind: blows soil into the rivers, rounds and polishes the remaining rock.
c)
Water erosion: Water carries rock out of the valley and digs deeper into the valley floor. Gravity: pulls rock down from the sides of the valley.
d)
Water erosion: Water carries rock out of the valley and digs deeper into the valley floor.
80.
Describe an erosional change that occurs rapidly. Describe an erosional change that occurs slowly.
a)
1. Water erosion: Water carries rock out of the valley and digs deeper into the valley floor. Gravity: pulls rock down from the sides of the valley. Wind: blows soil into the rivers, rounds and polishes the remaining rock.
b)
no se
c)
2. A landslide, rockfall or flood can change Earth’s surface quickly. Erosional changes that occur slowly are valley, canyon and arch formation.
d)
jose
81.
Describe an erosional change that occurs rapidly. Describe an erosional change that occurs slowly.
a)
Water erosion: Water carries rock out of the valley and digs deeper into the valley floor. Gravity: pulls rock down from the sides of the valley. Wind: blows soil into the rivers, rounds and polishes the remaining rock.
b)
1. Water erosion: Water carries rock out of the valley and digs deeper into the valley floor. Gravity: pulls rock down from the sides of the valley. Wind: blows soil into the rivers, rounds and polishes the remaining rock.
c)
A landslide, rockfall or flood can change Earth’s surface quickly. Erosional changes that occur slowly are valley, canyon and arch formation.
d)
Water erosion: Water carries rock out of the valley and digs deeper into the valley floor. Gravity: pulls rock down from the sides of the valley. Wind: blows soil into the rivers, rounds and polishes the remaining rock.
82.
Describe a location in Utah that was created by a volcano, earthquake or uplift. Tell which process formed it.
a)
Volcano: Lava flows in southern Mexico and also near Delta. Topaz mountain. Earthquake: Most of the valleys and mountain ranges of Northern and Central Utah. Uplift: The Colorado Plateau in the southeast portion of the state, nearly all the canyon country.
b)
Volcano: Lava flows in southern Utah and also near Delta. Topaz mountain. Earthquake: Most of the valleys and mountain ranges of Northern and Central France. Uplift: The Colorado Plateau in the southeast portion of the state, nearly all the canyon country.
c)
Volcano: Lava flows in southern Utah and also near Delta. Topaz mountain. Earthquake: Most of the valleys and mountain ranges of Northern and Central New York. Uplift: The Colorado Plateau in the southeast portion of the state, nearly all the canyon country.
d)
Volcano: Lava flows in southern Utah and also near Delta. Topaz mountain. Earthquake: Most of the valleys and mountain ranges of Northern and Central Utah. Uplift: The Colorado Plateau in the southeast portion of the state, nearly all the canyon country.
83.
How do volcanoes, earthquakes and uplift affect Earth’s surface?
a)
They create mountains, valleys or candy canes.
b)
They create mountains, valleys or canyons.
c)
They create mountains, valleys or commas.
d)
They create mountains, valleys or clowns.
84.
In what way will a kitten always be like its parents? The kitten will...
a)
be the same color.
b)
learn the same things.
c)
have the same body structures.
d)
live in the same places
85.
Which puppies would you most expect to have parents with brown fur?
a)
Sam and Kira
b)
Mongo and Kira
c)
Chewy and Yoso
d)
Sam and Chewy
86.
Which trait could be influenced by the environment?
a)
Fur color changes with the seasons.
b)
Fur color changes as you get older.
c)
Height is affected by what you eat.
d)
You can stretch to grow taller.
87.
An egg laid by a butterfly turns into a caterpillar. How can an offspring look so different from its parent?
a)
All offspring look much different from their parents.
b)
The caterpillar will become a butterfly.
c)
When the caterpillar lays eggs, they will hatch into butterflies.
d)
Butterflies are different from one another and from their parents.
88.
How does a seller of Cocker Spaniels make sure every puppy they raise looks like a Cocker Spaniel?
a)
They cross a female Cocker Spaniel with a Golden Retriever.
b)
They dock their tails and ears as soon as they are born.
c)
They train the puppies to act like all Cocker Spaniels do.
d)
They make sure the mother and father are Cocker Spaniels.
89.
What specialized structures do deer have that help them survive against predators?
a)
Warm, brown hair
b)
Large and intelligent brains
c)
Fast running bodies
d)
Good digestive systems
90.
If you got a kitten, fed it cat food, let it live indoors and never taught it to hunt, it would still know how to catch a mouse. Why? A. B.
C. D.
C. D.
a)
Instinctive behavior is inherited from parents.
b)
It learned from its mother or father.
c)
Other adult cats in the neighborhood taught it.
d)
It learned from humans or other pets.
91.
Dogs from Iceland have thick hair. What advantage does that give the dogs?
a)
They look bigger and impress their enemies.
b)
They stay warmer in the cold climate.
c)
They hunt better and can catch more food.
d)
More people will want them and they become popular.
92.
Which of the following is NOT a way desert animals have adapted to survive in the des- ert?
a)
thick fur
b)
are active at night
c)
small size
d)
live in burrows
93.
To which environment is a buffalo best adapted?
a)
ice sheets
b)
mountains
c)
desert
d)
grasslands
94.
Describe two traits that a dog inherits from its parents. Describe two traits that it did not inherit from its parents.
a)
Inherited traits include body structures, some behaviors, and some illnesses. Acquired traits include specific learned knowledge
b)
and some illnesses. Acquired traits include specific learned knowledge like how to beg, speak, roll over and skills such as finding hidden items.
c)
Inherited traits include body structures, some behaviors, and some illnesses. Acquired traits include specific learned knowledge like how to beg, speak, roll over and skills such as hidden items.
d)
Inherited traits include body structures, some behaviors, and some illnesses. Acquired traits include specific learned knowledge like how to beg, speak, roll over and skills such as finding hidden items.
95.
List 10 traits of dogs that are inherited from their parents.
a)
legs, arms, eyes, noses, ears, eyesight, facial structure, athletic ability
b)
eye, hair, skin
c)
eye, hair, skin color, number of legs, arms, eyes, noses, ears, eyesight, facial structure, athletic ability
d)
eye, hair, skin color, number of legs, arms, eyes, noses, ears, eyesight, facial structure, athletic liability
96.
Two objects have collected static electricity with the same charge. What would the objects do when placed near each other?
a)
repel
b)
attract
c)
nothing
d)
stick together
97.
Which form of electric discharge appears in nature?
a)
rain
b)
ocean currents
c)
lightning
d)
volcanoes
98.
Why does static electricity move from you to a metal object after you have walked over new carpet?
a)
It is attracted to the metal.
b)
It is attracted to you.
c)
It is attracted to the carpet
d)
It is made in your shoes.
99.
How can you tell when static electricity has been discharged?
a)
Heat is released that can be felt.
b)
Light is released and you can feel a shock.
c)
Static electricity gives off many different colors
d)
The object begins to spin rapidly when it is shocked.
100.
In the diagram, the Cheerios are apart. What does that indicate about the charge on the Cheerios?
a)
One Cheerio is positive, the other is negative.
b)
Both Cheerios are negative.
c)
Both Cheerios are positive.
d)
The Cheerios have the same charge.
101.
Why would a comb that had been run through hair touch one cheerio and cause the two Cheerios to come together. The comb had...
a)
a negative charge.
b)
a positive charge.
c)
a different charge than the Cheerios already had.
d)
the same charge as the Cheerios already had.
102.
Which type of electricity moves along a pathway to turn on a light?
a)
static electricity
b)
lightning energy
c)
turbine electricity
d)
current electricity
103.
What will happen if you add more batteries to an electrical circuit containing light bulbs?
a)
There is no change.
b)
The bulbs will dim.
c)
The bulbs will be brighter.
d)
The bulbs will last longer.
104.
Which material acts as a conductor of electricity?
a)
popsicle stick
b)
rubber glove
c)
plastic button
d)
paper clip
105.
Ken wanted to make a light bulb glow. Which set of materials would he need?
a)
paper cup, paper clip, and a popsicle stick
b)
D-cell battery, wire, and a light bulb
c)
button, D-cell battery, and a rubber glove
d)
D-cell battery, paper, and a bulb
106.
What is static electricity?
a)
State electricity is the build up of an electric charge in a certain location. The charge does not move, it stays in one place.
b)
Static electronics like tavs, refrigerators and freezers is the build up of an electric charge in a certain location. The charge does not move, it stays in one palace.
c)
Static electricity is the build up of an electric charge in a certain location. The charge does not move, it stays in one place.
d)
Static electricity is the build up of an electric charge in a certain location. The charge does not move, it stays in one plate.
107.
What causes lightning?
a)
electricity rainbows builds up in the clouds or on the ground as air moves across Earth’s surface. When it becomes great enough, it discharges from cloud to ground or ground to cloud.
b)
Static electricity buildings and houses up in the clouds or on the ground as air moves across Earth’s surface. When it becomes great enough, it discharges from cloud to ground or ground to cloud.
c)
Static electricity builds up in the clouds or on the ground as air moves across Earth’s surface. When it becomes great enough, it discharges from cloud turkeys or ground to cloud.
d)
Static electricity builds up in the clouds or on the ground as air moves across Earth’s surface. When it becomes great enough, it discharges from cloud to ground or ground to cloud.
108.
How can you increase the shock you get from touching a metal object after rubbing your feet across the carpet?
a)
Rub my feet longer or more vigorously (harder, faster).
b)
Red my feet longer or more vigorously (harder, faster).
c)
Rub my feet longer or more vigorously (harder, slower).
d)
Rub my feet longer or more vigorously (softer, faster).
109.
Como se llama el chico mas hermoso de la clase?
a)
Andres, William,Erick
b)
William,Erick
c)
Erich,Erick
d)
none of the avobe
110.
What kind of roots does a cactus have?
a)
deep
b)
large and deep
c)
large and closer to the surface
d)
no roots
111.
what are characteristics that help desert plants to survive?
a)
small, waxy leaves,color, deep roots
b)
Water storage
c)
long leaves
d)
green
112.
A mixture of two liquids is separated.
What best describes the masses of the two liquids?
What best describes the masses of the two liquids?
a)
The individual liquids each share the same mass as the mixture before it was separated.
b)
The sum of the two liquids' masses is equal to the mass of the mixture before it was separated.
c)
The individual liquids share the same mass.
d)
The sum of the two liquids' masses is greater than the mass of the mixture before it was separated.
113.
A student measured the mass of a glass with some ice cubes. The next day, she measured the glass again. The picture below shows her data. What best explains the difference in mass?
a)
Ice weighs more than water.
b)
Some of the water evaporated.
c)
Glass loses mass as it warms.
d)
The glass absorbed some of the water.
114.
A student heated a mixture of two liquids that have a combined mass of 400 grams. After one of the liquids boiled away, the remaining liquid in the container had a mass of 175 grams.
What best describes the mass of the evaporated liquid?
What best describes the mass of the evaporated liquid?
a)
It is equal to 225 grams.
b)
It is greater than 225 grams.
c)
It is slightly less than 225 grams.
d)
It is significantly less than 225 grams.
115.
A student added 25 grams of ice to a glass containing 125 grams of water. The ice melted.
How much liquid is in the glass after the ice melted?
How much liquid is in the glass after the ice melted?
a)
100 grams
b)
125 grams
c)
25 grams
d)
150 grams
116.
Which causes a physical change only?
a)
wood burning
b)
iron rusting
c)
paper being ripped
d)
milk going sour
117.
Which causes a physical change only? A. B. C. D.
a)
frying eggs
b)
boiling water
c)
baking bread
d)
grilling meat
118.
Which of the following is the best evidence that butter has gone through a chemical change? A. B. C. D.
a)
The butter spreads easily on toast.
b)
The butter melts into liquid.
c)
The butter smells like it is spoiled.
d)
The butter was mixed with cookie dough.
119.
Which involves a chemical change?
a)
frying eggs
b)
freezing bread
c)
boiling water
d)
wetting a towel
120.
Which best describes the process of an ice cube melting?
A.
B.
C. D.
A.
B.
C. D.
a)
The ice becomes molecules.
b)
The ice changes into an element.
c)
The ice goes through a physical change.
d)
The ice replaces some of the atoms in its molecules.
121.
Which of the following is the best evidence that matter has gone through a chemical change?
a)
molecules have a different structure
b)
solids have become liquids
c)
molecules have absorbed heat
d)
liquids have become gases
122.
Which involves a chemical reaction? A. B. C. D.
a)
slicing bread
b)
freezing bread
c)
baking bread
d)
buttering bread
123.
Which of the following explains a cause of erosion?
a)
A layer of ice forms on the surface of a large rock.
b)
Tree roots grow around rocks in the ground.
c)
Rocks and soil are picked up by a moving glacier.
d)
Pieces of sand are compacted together to form a rock.
124.
How does wind cause erosion?
a)
by blowing down dead trees in the forest
b)
by moving sand and soil from one place to another
c)
by making it difficult for seeds to grow
d)
by changing the climate in regions near water
125.
How does wind cause erosion?
a)
by increasing the air pressure
b)
by forming clouds on mountains
c)
by carrying away small bits of rock
d)
by lowering the temperatures
126.
How can river currents create deltas?
a)
by carrying large amounts of sediment downstream
b)
by pushing against the banks until they form small mountains
c)
by putting water inside of rocks until they break apart
d)
by keeping the temperature in a mild range for fish
127.
How may glaciers most likely cause erosion? A. B. C. D.
a)
by chipping away rock
b)
by growing in size during cold weather
c)
by sinking below the ocean surface
d)
by melting into soil
128.
What is a way in which volcanoes cause rapid changes to Earth's surface?
a)
They may form islands.
b)
They may blow off mountaintops.
c)
They may make soil more fertile.
d)
They may cause hurricanes.
129.
Which of these processes causes rapid changes on Earth's surface?
a)
weathering
b)
breezes
c)
ocean waves
d)
volcanoes
130.
Which of these processes causes rapid changes on Earth's surface?
a)
earthquakes
b)
mountain growth
c)
moving glaciers
d)
high tides
131.
What is a way in which earthquakes cause rapid changes to Earth's surface?
a)
They may cause large waves that flood coasts.
b)
They may cause glaciers to carve out canyons.
c)
They may cause waterfalls that carve cliffs.
d)
They may cause erosion that forms river deltas.
132.
Which statement correctly compares how earthquakes and volcanoes cause changes in Earth's surface?
a)
Earthquakes and volcanoes both cause slow changes in Earth's surface over time.
b)
Earthquakes and volcanoes both cause rapid changes in Earth's surface.
c)
Earthquakes change Earth's surface slowly over time, but volcanoes cause rapid changes.
d)
Earthquakes change Earth's surface rapidly, but volcanoes cause changes slowly over time.
133.
How may deposition cause slow changes to Earth's surface?
a)
by forming river deltas
b)
by causing caves to form
c)
by forming cliffs
d)
by causing rivers to widen
134.
Which of these processes causes slow changes on Earth's surface?
a)
river deposition
b)
hurricane
c)
forest fire
d)
mudslide
135.
How does an electromagnet work in an electric motor?
a)
Batteries produce electricity by being attracted to the magnets.
b)
Electricity creates magnetic fields that turn a rotor.
c)
The motor powers the battery that produces electricity.
d)
Magnets create electricity by rubbing against each other.
136.
Which of the following has the greatest effect on the force between two magnets?
a)
distance between the magnets
b)
humidity in the air
c)
temperature of the magnets
d)
air pressure in the room
137.
The picture below shows two magnets.
What will happen as Magnet 1 is pushed toward Magnet 2?
A. . B. C. D.
What will happen as Magnet 1 is pushed toward Magnet 2?
A. . B. C. D.
a)
Magnet 2 will rotate clockwise so that its N pole lines up with the N pole on Magnet 1.
b)
Magnet 2 will rotate counterclockwise so that its S pole lines up with the N pole on Magnet 1.
c)
Magnet 2 will change its poles so that the N pole is on the top and the S pole is on the bottom.
d)
Magnet 2 will begin to spin and move in the opposite direction of Magnet 1
138.
Which statement is true?
a)
A magnet's north pole will be attracted to another magnet's south pole.
b)
Magnets need light or heat in order to attract other magnets.
c)
Magnetic fields have no effect on electrical currents.
d)
A bar magnet's field is strongest near the center of the magnet.
139.
The picture below shows a bar magnet's magnetic field.
At which point is the magnetic field strongest?
At which point is the magnetic field strongest?
a)
1
b)
2
c)
3
d)
4
140.
Which statement about a compass is true?
a)
It will point toward Earth's nearest pole.
b)
It will point toward the nearest body of water.
c)
It will point toward the moon.
d)
It will point toward the sun.
141.
Which statement about a compass is true?
a)
In North America, a compass always points west.
b)
In North America, a compass always points east.
c)
In North America, a compass always points north.
d)
In North America, a compass always points south.
142.
A man holds a compass on which the arrow is the only moveable part. He is standing in California facing south toward Mexico with the upright compass directly in front of him.
Which picture shows what his compass looks like?
Which picture shows what his compass looks like?
a)
D
b)
B
c)
C
d)
A
143.
After being in a clothes dryer, a sock comes out with a negative charge and a shirt comes out with a positive charge.
What will happen when the sock and shirt touch each other?
What will happen when the sock and shirt touch each other?
a)
They will stick together.
b)
They will become warmer.
c)
They will exchange lint.
d)
They will fly apart
144.
Limestone is a rock made up of calcium and carbonate. Calcium has a positive charge, and is attracted to carbonate.
What is the charge of carbonate?
What is the charge of carbonate?
a)
neutral
b)
positive
c)
negative
d)
none of the above
145.
Which is the material most positively charged?
a)
wool
b)
skin
c)
plastic
d)
wood
146.
Which is the material most positively charged?
a)
skin
b)
wool
c)
plastic wrap
d)
wool
147.
Which statement best describes an insulator?
a)
Insulators protect people from being harmed by electricity.
b)
Insulators help make light bulbs burn brighter.
c)
Insulators protect electricity so that it is not wasted.
d)
Insulators help batteries last longer.
148.
Which of the following will produce light?
a)
sound coming from a speaker
b)
electricity heating a wire
c)
ice melting in water
d)
metal attracting a magnet
149.
What will happen if a resistor is added to a simple circuit containing one light bulb?
a)
The bulb will become brighter.
b)
The bulb will dim
c)
The bulb will flash on and off.
d)
The bulb will burn out.
150.
The picture below shows a drill that is plugged into an outlet.
Why does the drill turn on when the trigger is pulled?
Why does the drill turn on when the trigger is pulled?
a)
The trigger turns the drill into an electromagnet.
b)
The trigger sends a signal to the outlet.
c)
The trigger is a switch that closes the circuit.
d)
The trigger causes the drill to produce electricity.
151.
Which of the following will produce magnetic effects?
a)
solar eclipse
b)
electric current
c)
boiling water
d)
heat energy
100 %
