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Last Science

Total questions: 214

Worksheet time: 2hrs 23mins

Name
Class
Date
1.
Landon conducted an experiment with salt. Which of the following is a testable question that could be answered with his experiment?
a)
Does salt taste good?
b)
Will the amount of salt added to a solution increase it's conductivity?
c)
Which brand of salt satisfies the craving for salt users?
d)
Why do people in some countries use more or less salt?
2.
What do air, glass and water have in common?
a)
They are elements.
b)
They are all gases at room temperature.
c)
They all allow light to pass through them.
d)
They are all made up of the same atom.
3.
DNA technology has improved greatly in recent years. Which task has been made easier by the development of DNA technology?
a)
Identifying genetic disorders.
b)
determining the parts of an atom.
c)
observing distant objects in space.
d)
making very accurate measurements.
4.
When the temperature of water changes from 10 degrees Celsius to -10 degrees Celsius, the water changes from a...
a)
solid to a gas.
b)
a liquid to a gas.
c)
a liquid into a solid.
d)
a solid to a liquid.
5.
Which property causes water to form droplets?
a)
mass
b)
density
c)
buoyancy
d)
surface tension
6.
Ben is conducting an investigation to compare the speed at which two insects travel along the ground. Which two tools should he include in his investigation?
a)
meter stick and stopwatch
b)
graduated cylinder and balance.
c)
microscope and ruler
d)
thermometer and scale
7.
Lily was ready to drive to work. When she reached her car, she saw a flat tire. She made the following statement, " I must have run over a nail." Her explanation is an example of ...
a)
a prediction.
b)
a conclusion.
c)
an inference.
d)
a hypothesis.
8.
Darla found the mass of seven rock samples. She wants to find the average mass of the rock samples. What steps should Darla use to find the mean?
a)
Add all the masses, then divide by seven.
b)
Add the masses, then multiply by seven.
c)
Arrange the masses from lowest to highest, then find the middle mass.
d)
Arrange the masses from lowest to highest, then find the total mass.
9.
A characteristic of most conductors
a)
You can cut them easily
b)
Positive charges move through them easily
c)
Negative charges move through them easily
d)
They are delicous
10.
The property that causes objects to attract each other
a)
compass
b)
electric charge
c)
electric circuit
d)
electric field
11.
Which of these materials makes a good insulator
a)
plastic
b)
salt water
c)
aluminum foil
d)
gold
12.
A student added another light bulb to a circuit and all the lights became dimmer. What is most likely cause of this event?
a)
The batteries are weak
b)
The bulbs got too hot
c)
The circuit is a series circuit
d)
The circuit is a parallel circuit
13.
If one burned-out bulb causes all the lights in a circuit to fail, what might you conclude?
a)
It is a parallel circuit
b)
More batteries are  needed
c)
It is a series circuit
d)
A heavier wire is needed
14.
Which statement is true about an electromagnet
a)
It is a permanent magnet
b)
Increasing the number of coils decreases the strength
c)
It cannot be turned off
d)
It can be made by wrapping current carrying wire around an iron core
15.
A change that results in the formation of new substances
a)
compound change
b)
fundamental change
c)
chemical change
d)
change for a quarter
16.
A substance made of two or more kinds of atoms that are chemically combined
a)
atom
b)
element
c)
hydrogen
d)
compound
17.
Anything that takes up space and has mass
a)
matter
b)
evaporation
c)
physical property
d)
chemical property
18.
A trait of a substance by itself
a)
chemical property
b)
physical property
c)
investment property
d)
compound
19.
A substance  made of just one kind of atom
a)
compound
b)
molecule
c)
element
d)
regret
20.
A change that does not result in a new substance
a)
physical change
b)
chemical  change
c)
change for a dollar
d)
elemental change
21.
The smallest possible particle of an element
a)
compound
b)
molecule
c)
ridicule
d)
atom
22.
A property that involves how a substance interacts with other substances
a)
physical property
b)
chemical property
c)
atomic property
d)
private property
23.
All the living and nonliving things that surround and affect an organism
a)
gene
b)
mitosis
c)
environment
d)
option
24.
A way of acting that is passed from parents to offspring
a)
inherited trait
b)
instinct
c)
life cycle
d)
unicycle
25.
Threadlike structure in a cell nucleus
a)
chromosome
b)
trait
c)
mitosis
d)
cytoplasm
26.
Characteristic passed from parents to offspring
a)
inherited trait
b)
gene
c)
life cycle
d)
chromosome
27.

The energy that an object or substance has because of its position or condition.

a)

Thermal energy

b)

Temperature

c)

Potential energy

d)

Fuel

28.

The energy that an object or substance has because of motion

a)

Potential energy

b)

Fossil fuel

c)

Conduction

d)

Kinetic energy

29.

The measure of average kinetic energy of the particles in a substance

a)

Thermal expansion

b)

Energy

c)

Temperature

d)

Thermometer

30.

The property of a substance which kinetic energy increases without changing the state of a substance

a)

Radiation

b)

Thermal expansion

c)

Convection

d)

Heat

31.

The amount of thermal energy needed to raise the temperature of one gram of water one degree.

a)

Fuel

b)

Energy

c)

Calorie

d)

Thermal energy

32.

The transfer of movement of thermal energy from one substance to another

a)

Heat

b)

Radiation

c)

Conduction

d)

Convection

33.

The heat that occurs when the particles of a substance bump into each other.

a)

Heat

b)

Thermal expansion

c)

Kinetic energy

d)

Conduction

34.

A substance that does not allow heat to move through it easily

a)

Radiation

b)

Potential energy

c)

Insulator

d)

Convector

35.

A substance that allows heat to move easily through it.

a)

Fossil fuel

b)

Conductors

c)

Calorie

d)

Thermometer

36.

A substance that releases energy when burned

a)

Heat

b)

Calorie

c)

Insulators

d)

Fuel

37.

A file formed when the remains of plants and animals are buried quickly

a)

Convection

b)

Potential energy

c)

Fossil fuel

d)

Decomposition fuel

38.

The phase change from water vapor to liquid water is known as ____.

a)

Sublimation

b)

Condensation

c)

Evaporation

d)

Precipitation

39.

What do you call a change from solid to gas without passing through a liquid state?

a)

Sublimation

b)

Freezing

c)

Evaporation

d)

Condensation

40.

A change of state from a liquid to a solid is called ______.

a)

Melting

b)

Freezing

c)

Precipitation

d)

Evaporation

41.

What is deposition?

a)

A change from solid to gas without passing through a liquid state.

b)

A change from gas to solid without passing through the liquid state.

c)

A change from liquid to gas.

d)

A change of state from a liquid to a solid.

42.

A change from solid to liquid is known as _____.

a)

Freezing

b)

Deposition

c)

Melting

d)

Evaporation

43.

What is the scientific term for burning?

a)

Corrosion

b)

Decomposition

c)

Digestion

d)

Combustion

44.

The following are the evidence of chemical change, EXCEPT.

a)

Color change

b)

Odor change

c)

Changes in Shape

d)

Gas Production

45.

Which of the following waste management limit the amount of trash you throw away?

a)

Reduce

b)

Repair

c)

Reuse

d)

Recycle

46.

When you reuse, it means that you _____.

a)

Fix the broken items.

b)

Use the object by shredding in order to make a new product.

c)

Use old objects again for another purpose.

d)

Sell the objects to earn money.

47.

Which of the following spheres involves all of the bodies of water on the earth?

a)

hemisphere

b)

hydrosphere

c)

atmosphere

d)

geosphere

e)

stratosphere

48.

Which of the following spheres involves all of the land on the earth?

a)

biosphere

b)

hydrosphere

c)

atmosphere

d)

geosphere

e)

mesosphere

49.

Which of the following spheres involves all living things (plants, animals, insects, etc.) on the earth?

a)

biosphere

b)

hydrosphere

c)

atmosphere

d)

geosphere

e)

lithosphere

50.

Which of the following spheres involves all of the air and gases on the earth?

a)

biosphere

b)

hydrosphere

c)

atmosphere

d)

geosphere

e)

hemisphere

51.

Based on this graph, what can you conclude about water on earth?

a)

10% of earth's water is fresh

b)

10% of earth's water is salty

c)

97.4% of earth's water is fresh

d)

97.4% of earth's water is salty

52.

Which of these are fresh water sources? Select all that apply

a)

oceans

b)

rivers

c)

reservoirs

d)

aquifers

53.

Which statement best describes where fresh water is found?

a)

earth's freshwater is spread evenly between frozen and surface water

b)

most of earth's fresh water is found under ground

c)

earth's freshwater is mostly found on the surface in rivers and lakes

d)

most of earth's freshwater is frozen in glaciers and ice caps

54.

How does freshwater move through the ecosystem?

a)

precipitation, condensation, evaporation, transpiration

b)

condensation, evaporation, precipitation. transpiration

c)

evaporation, transpiration, condensation, precipitation

d)

transpiration, condensation, evaporation, precipitation

55.

Where does water go when it evaporates from a puddle on the street?

a)

into space

b)

into rivers and streams

c)

into the street

d)

into the atmosphere

56.

What can happen when water interacts with rocks? Select all that apply

a)

climate changes

b)

canyons form

c)

rain falls

d)

sediment forms

57.

Amna goes to the same beach every year. this year she notices that the beach is smaller. What could have caused this?

a)

oxygen in the air reacted with the sand

b)

a volcano erupted and flowed onto the beach

c)

wind and water eroded the beach

d)

cold weather changed the beach

58.

What is an example of a process that can SLOWLY change the earth?

a)

volcanoes

b)

glaciers

c)

earthquakes

d)

landslides

59.

The shape of land can be changes by:

a)

standing water

b)

flowing water

60.

_______________ can be caused by winds and waves from hurricanes, forcing water onshore.

a)

A floodplain

b)

A storm surge

61.

____________ can harm living things.

a)

Polluted water

b)

Clean water

62.

What is caused by burning fuel that mixes with the clouds?

a)

precipitation

b)

acid rain

c)

clean snow

d)

white clouds

63.

What will happen if a lake becomes polluted?

a)

There will be more fish in the lake.

b)

The pollution will not harm the plants and animals.

c)

The animals will die.

d)

It will change the soil into pebbles

64.

Which of earth's systems interacts in a landslide? Select all that apply

a)

atmosphere

b)

biosphere

c)

geosphere

d)

hydrosphere

65.

Which of earth's systems interact in a tornado? Select all that apply

a)

atmosphere

b)

biosphere

c)

geosphere

d)

hydrosphere

66.

What happens in a warm front?

a)

warm air pushes over cold air

b)

cold air pushes under warm air

c)

warm and cold air don't move

d)

warm and cold air mix together

67.

Which layer of the earth is a solid metal?

a)

crust

b)

mantle

c)

outer core

d)

inner core

68.

The change in a objects position is ________.

a)
Force
b)
Motion
c)
Reaction
69.
Force can make an object move in only one direction.
a)
True
b)
False
70.
Look at the food chain: grass > cricket > frog > owl. Which is the primary consumer?
a)
Grass
b)
Cricket
c)
Frog
d)
Owl
71.

A food web is consists of?

a)
Many overlapping food chains in an ecosystem.
b)
A series of events in which one organism eats another and obtains energy.
c)
Amount of energy that moves from one feeding level to another.
d)
Many types of insects that are stuck.
72.
Which level will contain plants?
a)
A
b)
B
c)
C
d)
D
73.

The distance and direction of an object's change in position from a starting point.

a)

displacement

b)

distance

c)

motion

d)

reference point

74.

Jermaine runs exactly 2 laps around a 400 meter track. What is the displacement?

a)

800

b)

400

c)

200

d)

0

75.

A place or object (like a stop sign or mailbox) used for comparison to determine if another object is in motion is called a _____.

a)

comparison point

b)

point of view

c)

reference point

d)

motion detector

76.

The standard (SI) unit for measuring distance is the ________ .

a)

mile

b)

foot

c)

kilometer

d)

meter

77.

This is a form of energy that causes materials to become warmer or hotter.

a)

Temperature

b)

Heat

c)

Thermometer

78.

What is the greatest source of heat?

a)

Boiling Water

b)

Sun

c)

Fire

79.

Which of the following statements is true?

a)

The faster the particles move, the lower the temperature.

b)

The faster the particles move, the higher the temperature.

c)

The slower the particles move, the higher the temperature.

80.

Without the Sun, which of the organisms could no longer survive?

a)

Producers

b)

Consumers

c)

Producers and Consumers

d)

All organisms

81.

What are biotic factors in an ecosystem?

a)

Dead things

b)

Weather

c)

Animals

d)

Soil

82.

Where do plants get their energy?

a)

Air

b)

Temperature

c)

Soil

d)

The Sun

83.

These are the animals that need sunlight to keep their body warm, except …

a)

Frogs

b)

Earthworms

c)

Lizards

d)

Turtles

84.

What would happen when an ecosystem doesn’t have enough water resources?

a)

The land will polluted

b)

The bacteria will multiply

c)

The ecosystem still works well

d)

plants and animals will be died

85.

If there was an increase in the owl population. As a result the mouse population will …

a)

Eat the predators

b)

Increase

c)

Decrease

d)

Stay the same

86.

Polar bears live on Arctic ice. Warm temperatures make the ice melt. This is a change in …

a)

Climate that harms a population

b)

Food supply that helps a population

c)

Available soil that helps a population

d)

Available sunlight that harms a population

87.

Organisms, like seaweed, that make food through the process of photosynthesis

a)

consumers

b)

producers

c)

decomposers

d)

omnivores

88.

Organism, like fish, that get energy from eating other organisms.

a)

consumers

b)

producers

c)

decomposers

d)

All answers are correct

89.

It absorbs water and minerals from the soil_______

a)

root

b)

fruit

c)

leaf

d)

stem

90.

It produces a new plant___________

a)

stem

b)

root

c)

seed

d)

leaf

91.

They use water, air, and sunlight to produce food for the plant.

a)

flowers

b)

leaves

c)

stems

d)

roots

92.
 Which of the following BEST describes the Tundra biome? ­­­­­­­­­­
a)
a.  A treeless plain found in the Artic or on the tops of mountains that is characterized by very low winter temperatures and short, cool summers. 
b)
a.  A region that has little or no plant life, long periods without rain, and extreme temperatures; usually found in hot climates. 
c)
a.  An area that often has scattered trees and that is found in tropical and subtropical areas where seasonal rains, fires, and drought happen. 
d)
a.  A forest biomes where the leaves on the trees fall off during winter, or the dry season, and grow back in the spring and summer.
93.

Biome is

a)

small area of land that has specific weather, plants and animals

b)

small area of land that has the same weather, plants and animals

c)

large area of land that has specific weather, plants and animals

94.

Desert is ----------------- biome with little rain

(a)  

95.

Cactus can live in the desert because it has -------------------

a)

a hump to store food

b)

small roots

c)

a thick stem

96.

Tundra has frozen ground all the year

a)

True

b)

False

97.

Deciduous forest has only two seasons

a)

True

b)

False

98.

Which of these is NOT a Biome?

a)

stratosphere

b)

temporate forest

c)

ocean

d)

savanna

99.

The system that contains all living things on Earth.

a)

Biosphere

b)

Atmoshpere

c)

Hydrosphere

d)

Geosphere

100.

The effects of people and their actions on the biosphere is called

a)

human impact

b)

biome

c)

environmental change

d)

Mr. Price taking a nap.

101.

Regions of the planet with similar types of life and climates are called

a)

biomes

b)

kingdoms

c)

spheres

d)

systems

102.

Science places all living things into broad categories called:

a)

kingdoms

b)

spheres

c)

biomes

d)

systems

103.

The biosphere includes plants and animals that live

a)

on land

b)

on land and in the water

c)

on land, in water, and in the air

d)

in water

104.

The prefix "Bio" in Biosphere means:

a)

life

b)

water

c)

Earth

d)

air

105.

Which of the following is an example of a human impact on the biosphere?

a)

Hunting

b)

Rain falling from the clouds

c)

a volcano erupting

d)

an earthquake

106.

When water wears away parts of the geosphere causing it to change it is called

a)

erosion

b)

lifting

c)

wind funnel

d)

hydropshere

107.
The correct definition for a biome is
a)
the scientific name for vegetation (plants!) found in a particular region.
b)
the scientific name for animals found in a particular region or habitat.   
c)
An ecosystem on a large/global scale
d)
is a community of plants and animals that interact with each other in a physical environment.
108.
Which biome, because of its climate, has the largest number of species of plants and animals?
a)
Tundra
b)
Rainforest
c)
Desert
d)
Pineforest
109.
_______________ is the clearing of forests on a massive scale.
a)
Delimbing
b)
Reforestation
c)
Deforestation
d)
Detreeing
110.

Which body system processes food into usable source of energy?

a)

Respiratory System

b)

Digestive System

c)

Skeletal System

d)

Circulatory System

111.

Which characteristic of a dog is most likely a result of its environment?

a)

Its color.

b)

Its length of ears.

c)

Its food preference.

d)

Its ability to see in the dark.

112.

Matt is a tall, eleven-year-old boy. He has a scar on his right cheek. Matt is a tall, eleven-year-old boy. He has a scar on his right cheek. He is intelligent and an excellent drummer. Which of his traits did he most likely inherit?

a)

his height

b)

his scar on his right cheek

c)

his intelligence

d)

his ability to play drums

113.

A litter of kittens have traits that are both similar to a mother and father cat. Which best explains the situation?

a)

The kittens are provided with the same kind of milk by their mother as they grow.

b)

The kittens inherited some of the traits from their mother and some from their father.

c)

The kittens are kept in the same temperatures by their mother when they were first born.

d)

The kittens are taught by their parents to have similar traits.

114.

Which is an example of a learned characteristic?

a)

hair type

b)

eye color

c)

reading music

d)

dimples

115.

Which is the correct order of how organisms are arranged?

a)

cells --- organs ---- tiossues ---- systems

b)

cells ---- tissues ---- organs --- systems

c)

systems--- organs ---- tissues --- cells

d)

tissues --- cells ---- organs ---- systems

116.

Which of the following statements is true of aquatic biomes?

a)

Freshwater and marine biomes are evenly distributed on Earth

b)

Freshwater biomes supply a greater portion of Earth's oxygen than marine biomes.

c)

Freshwater biomes are a vital source of drinking water.

d)

Marine biomes include streams, rivers, ponds, and lakes.

117.

has 4 seasons, plants lose their leaves during autumn

animals such as raccoon, squirrels, and deer

mid-latitudes

Choose the right term to associate

a)

temperate deciduous forest

b)

tropical rainforest

c)

desert

d)

grassland

118.

They are organisms that make their own food by the process of photosynthesis.

a)

decomposers

b)

herbivores

c)

consumers or heterotrophs

d)

producers or autotrophs

119.

They are the non-living components in the ecosystem such as air, temperature, sunlight, water, that affect the life of organisms in the ecosystem.

a)

living things

b)

abiotic factors

c)

biotic factors

d)

world

120.
Which biome is the driest?
a)
Desert
b)
Tundra
c)
Taiga
d)
Rainforest
121.

Which biome is hot all year with wet and dry seasons?

a)

tropical rainforest

b)

arctic tundra

c)

temperate grassland

d)

desert

122.
Biotic factors of an ecosystem are:
a)
non-living
b)
plants
c)
living thing
d)
soil
123.
Identify an a example of an abiotic factor?
a)
Panda
b)
Turtle
c)
Butterfly
d)
sunlight
124.

Which biome is hot and humid all year round with plenty of rain?

a)

Tundra

b)

Tropical Rain Forest

c)

Taiga

d)

Temperate Forest

125.

Which biome is sandy and/or rocky with very little rain?

a)

Desert

b)

Tundra

c)

Grassland

d)

Tropical Rain Forest

126.

Which biome has tree leaves that change color and drop off as the season changes from fall to winter?

a)

Tropical Rain Forest

b)

Deciduous Forest

c)

Tundra

d)

Coniferous Forest

127.
Which are examples of producers?
a)
grass, leaves, algae
b)
the sun
c)
crickets, spiders, beetles
d)
mushrooms, fungi
128.
What breaks down dead organisms? 
a)
predators
b)
decomposers
c)
consumers
d)
scavengers
129.

What is an abiotic factor?

a)

living

b)

nonliving

c)

dead

d)

animals

130.

What is a biotic factor?

a)

living

b)

nonliving

c)

dead

d)

air

131.
What looks to be the motion of the Sun in the sky is really caused by the motion of _____
a)
the Earth
b)
the stars
c)
the planets
d)
the Earth's axis
132.
The spinning movement of the Earth about its axis is called the Earth's _____
a)
revolution
b)
rotation
c)
precession
d)
orbit
133.
The invisible line that passes through the North Pole and the South Pole is called Earth's ____
a)
axis
b)
equator
c)
ecliptic
d)
prime meridian
134.
The process of Earth spinning on its axis is referred to as
a)
revolution
b)
ionization
c)
rotation
d)
ellipse
135.

Melting Ice

a)

Physical Change

b)

Chemical Change

136.

Cutting Paper

a)

Physical Change

b)

Chemical Change

137.

What is the process by which a chemical change occurs?

a)

Conservation of Matter

b)

Physical Change

c)

Chemical reaction

d)

Condensation

138.

What always happens during a chemical change?

a)

The material and its properties change

b)

The material dissolves

c)

The total mass of the material changes

d)

The material changes state from a solid to a liquid

139.

What is the best definition of a chemical change?

a)

A change in the state of matter in which the form changes but the properties stay the same.

b)

A change in the state of matter in which the material changes into an entirely different material with properties that are different from the original material.

c)

A change in the state of matter in which the material is still the same just in a different form.

140.

Which is not a sign that a chemical reaction has occurred.

a)

A change in mass

b)

bubbling

c)

production of an odor or smell

d)

change in color

141.

Which is not evidence that a chemical reaction has occured

a)

Production of flames

b)

Change in temperature or heat

c)

freezing

d)

Production of light

142.

The total mass after a chemical reaction is that same as the total mass before a chemical reaction

a)

True

b)

False

143.

Why are some acids used in food?

a)

To sweeten the food.

b)

To make it salty

c)

So there will be a sour taste.

d)

So there will be a bitter taste.

144.

How can you make a dull penny shiny?

a)

Dip it in vinegar.

b)

Wash it with soapy water

c)

Put it in salt and water.

d)

Dip it in a vinegar and salt solution.

145.

Kayla has a wooden rod, a steel rod, and a glass rod. How could she compare the materials to find out which transfers thermal energy BEST?

a)

Submerge each rod in ice water to find out which loses the most heat.

b)

Place the three rods in a freezer to find out which becomes the coldest.

c)

Place one end of each rod in very hot water to find out which becomes hot the fastest.

d)

Place the rods on a table in a warm room and find out which feels warmest after a period of time.

146.

How does the sun warm a person’s face?

a)

through evaporation

b)

through radiation

c)

through conduction

d)

through convection

147.

Which best describes heat transfer due to convection??

a)

It occurs with direct contact.

b)

It occurs only during the day.

c)

It occurs with movement of a fluid.

d)

It occurs only when something is burning.

148.

Which causes surface water in a lake to heat up during the hot summer?

a)

conduction

b)

convection

c)

evaporation

d)

radiation

149.

Which container will be less likely to feel cold on the outside when filled with ice?

a)

a foam cup

b)

a glass cup

c)

a metal cup

d)

a paper cup

150.

Which best explains how a fluid is heated?

a)

conduction

b)

convection

c)

radiation

d)

evaporation

151.

When a warm plate is placed onto a cool counter, which most likely occurs?

a)

The plate gains heat and the countertop gains heat.

b)

The plate loses heat and the countertop gains heat.

c)

The plate gains heat and the countertop loses heat.

d)

The plate loses heat and the countertop loses heat.

152.

Which best explains why a metal ice cream scoop works more efficiently than a plastic ice cream scoop when dipped in warm water prior to scooping the ice cream?

a)

The metal heats more quickly than the plastic.

b)

The plastic heats more quickly than the metal.

c)

The metal insulates against heat.

d)

The plastic conducts heat.

153.

Which force is slowing the race car down the most?

a)

friction

b)

gravity

c)

air resistance

d)

pull

154.

Which force is slowing the drag car down?

a)

gravity

b)

pull

c)

air resistance

d)

push

155.

What force is most important in the sport of curling?

a)

gravity

b)

push

c)

pull

d)

magnetic

156.

Which TWO forces make a paper plane fly?

a)

push and pull

b)

gravity and air resistance

c)

pull and friction

d)

push and air resistance

157.

Which TWO forces are at work here?

a)

push and gravity

b)

gravity and air resistance

c)

friction and pull

d)

push and air resistance

158.

What force is acting on the rope?

a)

gravity

b)

push

c)

friction

d)

tension

159.

Which TWO forces enables the athlete to benefit from this activity?

a)

tension and push

b)

pull and tension

c)

pull and push

d)

pull and elastic

160.

Which force most affects the movement of the arrow?

a)

friction

b)

tension

c)

air resistance

d)

gravity

161.

Which TWO forces are evident in this picture?

a)

air resistance and buoyancy

b)

tension and elastic

c)

buoyancy and pull

d)

fraction and buoyancy

162.

Which sentence describes the differences between plant and animal cells?

a)

Plant cells have a nucleus but animal cells do not.

b)

Plant cells have chloroplasts but animal cells do not.

c)

Plant cells do not have a nucleus but animal cells do.

d)

Plant cells do not have chloroplasts but animal cells do.

163.

What is true for all bacteria?

a)

They do not have a nucleus

b)

They can be seen without a microscope.

c)

They are all harmful

d)

They only live in hot water.

164.
Which structures are found in every living cell?
a)
cell membrane and cytoplasm
b)
chloroplasts and mitochondria
c)
a cell wall and nucleus
d)
chloroplasts and cell wall
165.
Which cell structure is found in plant and animals cells and controls what can come into or leave a cell?
a)
cell membrane
b)
cytoplasm
c)
nucleus
d)
vacuole
166.
What is the function of the cell nucleus found in both plant and animal cells?
a)
to produce energy
b)
to control cell activity
c)
to remove waste products
d)
to allow molecules to enter the cell
167.
What is one basic function of the vacuoles?
a)
circulating oxygen
b)
producing food
c)
controlling cell processes
d)
storing water
168.
Chloroplasts in plant cells allow the plant to perform a function that animal cells cannot do.  What is the main function of the chloroplasts found in plant cells?
a)
to absorb light energy and manufacture food
b)
to remove waste materials by active transport
c)
to manufacture chemical energy from food
d)
to control the shape of the cell
169.

Identify the pigment in plants leaves that captures the energy of sunlight.

a)

Oxygen

b)

Carbon Dioxide

c)

Chlorophyll

170.

During photosynthesis plants make sugar and....

a)

Carbon Dioxide

b)

Dirt

c)

Oxygen

171.

What does chlorophyll capture?

a)

Chlorophyll captures water from the air.

b)

Chlorophyll captures carbon dioxide from the air.

c)

Chlorophyll captures the energy of sunlight.

172.

During photosynthesis, what form does the food take?

a)

The food takes the form of sugar.

b)

The food takes the form of carbon dioxide.

c)

The food takes the form of soil.

173.

Which best describes why winds at the beach change direction between day and night

a)

because the temperatures over land and water change

b)

because warm air over land sinks and stays in place over land

c)

because cool air rises and is replaced by warm air over the ocean

d)

because cool air sinks and stays in place over land

174.

which will most likely result from a low-pressure system?

a)

warm temperatures

b)

cloudy conditions

c)

clear conditions

d)

cool temperatures

175.

Molten rock below the Earth's surface is called....

a)

Lava

b)

Magma

c)

Granite

d)

Feldspar

176.

The word igneous comes from the Latin word for...

a)

melted

b)

very hot

c)

solid

d)

fire

177.
What are the 3 major types of rocks?
a)
Igneous, Metamorphic, Sedimentary
b)
Metamorphic, Igneous, Cementation
c)
Brown, Red, Gray
d)
Streak, Hardness, Breakage
178.
This rock formed when bits of other rocks became pressed into a solid. What type of rock is it?
a)
Sedimentary Rock
b)
Metamorphic Rock
c)
Igneous Rock
179.
This rock was formed when molten rock cooled into a solid. What type of rock is it?
a)
Igneous Rock
b)
Metamorphic Rock
c)
Sedimentary Rock
180.
When you watch a volcano erupt molten rock, you are seeing _____
a)
Lava
b)
Magma
c)
Mineral Crystals
d)
Igneous Rocks
181.

Geologists have classified rocks into three major groups of rocks which are:

a)

inorganic, organic and chemical rocks

b)

igneous, sedimentary and metamorphic rocks

c)

metamorphic, chemical and non chemical rocks

d)

sedimentary, inorganic and igneous rocks

182.

The process by which metamorphic rock changes to igneous rock begins with

a)

melting

b)

erosion

c)

deposition

d)

crystallization

183.
The process by which igneous rocks are formed...
a)
heat and pressure
b)
melting and cooling
c)
weathering and erosion
184.
The process by which metamorphic rocks are formed...
a)
heat and pressure
b)
erosion and deposition
c)
melting and cooling
185.
During the rock cycle, what forms when the magma cools?
a)
igneous rocks
b)
sedimentary rock
c)
metamorphic rock
d)
foliated rock
186.
Sedimentary rocks may contain fossils.
a)
True
b)
False
187.

Which cycle describes what plants and animals breathe in and out?

a)

Nitrogen Cycle

b)

Food Web

c)

Life-Death Cycle

d)

Carbob Dioxide-Oxygen Cycle

188.

Which of the following are decomposers? Check all that apply.

a)

Rose Bush

b)

Mushrooms

c)

Fungi

d)

Bacteria

189.
The outside layer of cells on the top and bottom of a leaf
a)
Mitochondria 
b)
Photosynthesis
c)
Skin
d)
Epidermis
190.
The struggle for organisms for the same limited resources
a)
Resources
b)
Competition
c)
Environment
d)
Mitochondria 
191.
Available supplies of food, sunlight, space, and water in an environment
a)
Resources
b)
Competition
c)
Environment
d)
Mitochondria
192.

Living things in an ecosystem are known as;

a)

alive

b)

abiotic factors

c)

biotic factors

d)

plants and animals

193.

Biotic factors need abiotic factors for;

a)

food

b)

shelter

c)

survival

d)

complanionship

194.

What is it between biotic and abiotic factors that makes an ecosystem?

a)

interactions

b)

they don't need each other

c)

companionship

d)

numbers of each

195.

Which would not be considered a population?

a)

35 cows grazing in a field

b)

15 chickens laying eggs

c)

two eagles making a nest

d)

a bunch of rabbits playing in the yard

196.

What population would not be found in a school community?

a)

bus drivers

b)

athletic coaches

c)

sailors

d)

cooks

e)

students

197.

In order to be an ecosystem, every ecosystem must have;

a)

abiotic factors

b)

interactions

c)

biotic factors

d)

all of the above

198.

______ is the green pigment in plants that makes it possible for them to make food from carbon dioxide and water.

a)

Photosynthesis

b)

Chlorphyll

c)

Nutrients

d)

Hydroponics

199.

_______ is made up of all the different populations that live and interact in an area.

a)

Pou

b)

Community

c)

Invasive Species

d)

Delta

200.

_______ is a species that has been brought to a new place by people and can harm the environment.

a)

Population

b)

Community

c)

Invasive Species

d)

Delta

201.

an early stage in the life cycle of an organism that will undergo complete metamorphosis.

a)

Incomplete Metamorphosis

b)

Complete Metamorphosis

c)

Larva

d)

Nymph

e)

Pupa

202.

populations of different species of organisms living together in the same geographic area.

a)

Behavior

b)

Community

c)

Population

d)

Consumer

203.

all members of the same species living together at the same time in the same area.

a)

Behavior

b)

Community

c)

Population

d)

Consumer

204.

Things that harm an ecosystem by taking space, using natural resources and producing waste.

a)

Human Activities

b)

Extinction

c)

biotic

d)

habitat

205.

An organism's complete role, or function in its ecosystem including all the ways an organism survives.

a)

secondary succession

b)

invasive species

c)

community

d)

Niche

206.

All the organisms living in a place together with their environment

a)

ecosystem

b)

niche

c)

habitat

d)

population

207.

Gradual change of an organism within an ecosystem

a)

diversity

b)

succession

c)

activity

d)

extinction

208.

A group of organisms of the same species within an ecosystem

a)

niche

b)

habitat

c)

primary succession

d)

population

209.

To be different in kind, an ecosystem needs these differences to support many populations of species

a)

diversity

b)

ecosystem

c)

secondary succession

d)

population decrease

210.

Population of the species grows quickly and takes food and space away from other species. This is called

a)

invasive species

b)

limiting factors

c)

human activities

d)

seconday activities

211.

Which of the following is NOT something that quickly modifys an environment?

a)

drought

b)

flooding

c)

earthquakes

d)

thunder storm

212.

A place where an organism lives within an ecosystem

a)

biotic

b)

limiting factor

c)

habitat

d)

drought

213.
All of the living AND non-living things in an area that interact with each other are called a/an __________.
a)
community
b)
habitat
c)
population
d)
ecosystem
214.
A group of organisms of the same species living in the same area are called a/an __________.
a)
community
b)
habitat
c)
population
d)
ecosystem

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