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WorksheetsLast Review
Total questions: 79
Worksheet time: 1hrs 29mins
Balanced forces
Equal and opposite forces - no acceleration happens
Imbalanced forces
Force in one direction - acceleration happens
Inertia
Resistance to changing state of movement
Acceleration
To increase the rate of speed
Deceleration
To decrease the rate of speed
Kinetic energy
Energy of motion
Thermal energy
Energy from heat/temperature
Chemical energy
Energy from chemical reactions
Potential energy
Held energy waiting to transfer to something else
this form has definite shape and definite volume
gas
liquid
solid
volume
this form has no definite shape and no definite volume
solid
liquid
gas
matter
What method would be best to use to separate iron filings and sand?
use a filter
use a magnet
paper chromatography
pick out the sand
Sara has a mixture of chocolate powder, sand, table salt, and sugar. She adds water. Which of these can be separated from the mixture after she adds the water?
table salt
chocolate powder
sugar
sand
positively charged particle
Proton
Electron
Neutron
The part of the atom with no charge
Proton
Neutron
Electron
negatively charged particle
Proton
Neutron
Electron
A material that does not allow heat or electrons to move through it easily.
Insulator
Conductor
Metal
Wire
A material that allows heat and electricity to pass through it.
insulator
conductor
wood
glass
Ethan put marshmallows, peanuts, pretzels, and cereal together in a Ziploc bag for snack. Which of these BEST describes what he was doing?
making a mixture
measuring a liquid
changing states of matter
separating a mixture
Students list ways people at their school can reduce landfill waste.
Ways to Reduce Landfill Waste at Our School
>serve lunches on reusable plates
>turn in some homework using email
>copy worksheets on both sides of paper
>replace paper towels with hand dryers
Which other idea would most likely be included on this list?
remove trash cans from hallways
turn off lights when leaving a room
replace old textbooks with newer ones
add recycle bins for paper in classrooms
From November to February, the constellation Orion is clearly visible in the night sky from Mississippi. Orion appears to rise from the east and set in the west. The stars do not actually move through the sky. They appear to change positions due to the Earth's Movement.
What factor is responsible for the changes in Orion's position when viewed during the winter month?
the rotation of the Sun
the rotation of Earth on its axis
the revolution of the Sun around the Earth
the revolution of the moon around the Sun
A student needs to separate a mixture compsed of iron fillings and sand. How can the student most easily separate all the iron fillings from the mixture?
Use a magnet to attract the iron filings
Use filter paper to isolate the iron filings
Add water to the mixture and pour off the floating iron filings.
Add water to the mixture and allow it to evaporate and leave behind the iron filings
Two words that correctly identify properties of these planets
Uranus -Neptune- Saturn- Jupiter
rocky
gaseous
large
small
Which statement identifies the most likely outcome if the rabbit population suddenly reduced?
Owls would become extinct because they have no food
Hawks would have less food available so their population would decrease
Grasshoppers would have less food available so their population would decrease
Grasses in the area would die and all of the animals would have to move to another area to survive
The diagram shows what happens when wood is burned
Burning Wood
wood + oxygen = ashes+carbon dioxide gas + water
(starting) ------------------------------ (ending)
Which statement best explains the change that occurs when wood is burned?
This is physical change because the products can be changed back into wood
This is physical change because the products are different from the starting materials
This is chemical change because the products can be changed back into wood
This is chemical change because the products are different from the starting materials
Which is the correct order of the food chain of the channel catfish?
A,B,C,D
B,C,D,A
C,D,A,B
D,B,A,C
Which process would be the best way to increase the concentration in a solution of sugar and water?
Decrease the amount of sugar, and increase the amount of water
Increase the amount of sugar, and keep the amount of water constant
Decrease the amount of sugar, and decrease the amount of water
Increase the amount of water, and keep the amount of sugar content
Letter X is showing (a) energy.
Potential or Kinetic?
Margaret is studying how the height of a ramp changes the length of time it takes a toy car to roll down the ramp. In her experiment, she uses ramps that are the same length and three identical toy cars. What should Margaret's hypothesis be for this experiment?
The taller the ramp, the (a) the car.
This property describes how close the molecules of an object are to one another. Are they squeezed together or spread apart?
The way we test this property is by seeing if an object floats or sinks.
mass
density
volume
solubility
What is the original source of almost all the energy in most ecosystems?
carbohydrates
sunlight
water
carbon dioxide
The algae at the beginning of the food chain are ___ .
consumers
decomposers
producers
heterotrophs
Aquatic ecosystems are ____ ecosystems.
land-based
space-based
water-based
What organism feeds only on plants?
carnivore
herbivore
omnivore
detritvore
What breaks down dead plants and animals?
decomposer
consumer
predator
producer
In an ecosystem, birds depend on insects to survive. If pesticides are spread to control the insect population, the bird population will most likely ___ .
increase
decrease
decrease, then increase
increase, then decrease
A food chain begins when ___ .
an animal eats another animal
an animal eats a green plant
a plant eats an insect
an animal eats the remains of a dead tree
More dense...
floats
sinks
Less dense...
floats
sinks
A student helped his father prepare soup for dinner. His father asked him to use a wooden spoon to stir the soup as it heated.
Why would the student's father ask him to use a wooden spoon?
The wooden spoon is able to float in the soup
the wooden spoon is able to sink in the soup
the wooden spoon is a good conductor of thermal energy
The wooden spoon is a good insulator of thermal energy
In the food chain above, the role of the grasshopper can best be described as--
a consumer that eats producers
a herbivore that produces its own energy
a producer that provides energy for the mouse
an omnivore that eats grasses and small animals
Click all the producers
tulip
rose
pine tree
brown bear
ants
Which statement best explains why the sun appears to move across the sky during the day?
F The Earth is closest to the sun in the winter.
G The Earth is revolving around the sun.
H The Earth is tilted at 23.5 degrees.
J The Earth is rotating on its axis
A student pours 14 grams of sugar into a jar filled with 500 milliliters of water. The student thoroughly stirs the sugar and water to make a solution. Which change most likely occurs to the sugar when it is added to the water?
F The sugar breaks down to form a new substance in the solution.
G The sugar changes water into a new substance in the solution.
H The sugar floats on the surface of the water in the solution.
J The sugar completely dissolves in the solution.
A student needs to separate a mixture compsed of iron fillings and sand. How can the student most easily separate all the iron fillings from the mixture?
Use a magnet to attract the iron filings
Use filter paper to isolate the iron filings
Add water to the mixture and pour off the floating iron filings.
Add water to the mixture and allow it to evaporate and leave behind the iron filings
Which food chain is in the correct order?
grasshopper → grass → snake → frog → hawk
grasshopper → frog → hawk → snake → grass
grass → grasshopper → frog → snake → hawk
grass → grasshopper → snake → frog → hawk
What prevents plant growth beneath the trees in thick forests?
The trees limit the amount of sunlight that is able to reach the ground.
The roots of the trees make it difficult for plants to grow.
Little water reaches the ground under the trees.
The temperature of the soil under the trees does not allow plants to grow.
This graph shows the motion of an animal.
When does the animal remain still?
between second 1 and second 2
between second 2 and second 3
between second 3 and second 4
between second 4 and second 5
This diagram shows a ramp with a toy car at the bottom. A string is attached to the front of the car and the string goes over a pulley at the top of the ramp. A weight is attached to the other end of the string. What would be most responsible for the toy car being pulled up the ramp?
friction
gravity
kinetic energy
momentum
What increases as a rock falls to the ground?
the density of the rock
the pull of gravity on the rock
the inertia of the rock
the momentum of the rock
What determines the seasons on Earth?
The way the hemispheres are split
Earth's tilt
Earth's rotation
Earth's axis
How long does it take the Earth to make on complete revolution around the Sun?
About 365 days
About 24 hours
About 27 days
About 10 months
Which hemisphere is tilted toward the sun in June?
Eastern
Northern
Western
Southern
The model shows Earth is several positions relative to the sun. In which position is it winter in North America?
Position 1, because North America receives the most sun.
Position 2, because North America is tilted toward the sun.
Position 3, because North America is parallel to the sun.
Position 4, because North America is tilted away from the sun.
How do scientists group the planets?
inner - gas giants, outer - terrestrial
inner - terrestrial, outer - gas giants
Why is Mars called the red planet?
Mars is red
someone painted it red
the rocks contain iron oxide or rust
Reorder the following IN ORDER OF CLOSEST TO THE SUN
MERCURY
VENUS
EARTH
MARS
Reorder the following IN ORDER OF CLOSEST TO THE SUN
JUPITER
SATURN
URANUS
NEPTUNE

The hottest planet in our Solar System is..
Uranus
Venus
Mars
Earth
Which is the biggest planet?
Venus
Jupiter
Neptune
Mercury
The moon revolves around the Earth every _____ days.
30 days
29 days
28 days
32 days
What type of eclipse is this an example of?
Lunar Eclipse
Solar Eclipse
Which of these describes how a lunar eclipse happens?
The Sun comes between the Moon and the Earth.
The Earth comes between the Moon and the Sun.
The Moon comes between the Earth and the Sun.
Which type of eclipse has a New Moon?
solar eclipse
lunar eclipse
What is the net force?
(a)
Which of the following would cause an increase in friction on our Hot Wheels ramp?
add cooking oil to the ramp
add sandpaper to the ramp
