Category 1
Category 2
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Category 4
Category 5
100

One way to help the environment is to ________ our use of certain products.

Reduce

100

When animals fight for the same food source it's called ___________.

Competition

100

What would happen if an organism is brought to a new environment?

The animal would use up all the environment's resources.

100

When there is little or no rain for a long time, a __________ occurs.

drought
100

Food is an example of a __________ that living things need to survive.

resource

200

The remains of organisms that lived long ago are ___________.

Fossils

200

When only a few of a plant or animal are left, it's called ___________.

Endangered

200

When there is not enough rain and the land is dry, it's called ___________.

A drought

200

Scientists can use a __________ to learn more about a living thing from the past.

Fossil

200

Predators are animals that __________.

hunt other animals for food

300

What do we call it when there are no more of a plant or animal that exists?

Extinct

300

What do we call it when harmful materials damage the air, water, or land?

Pollution

300

What does it mean if the fossil of an animal has wings?

The animal could fly.

300

If you __________ your own aluminum cans, companies can make them into new cans.

recycle

300

You could __________ a water bottle by filling it up with water again.

reuse

400

Heavy rains and other storms can cause a ___________.

Flood

400

What do we call it when we take something and turn it into something new or something else?

Recycle
400

How can a wildfire be caused in a drought?

Lightning can strike a plant, and it will catch on fire easily since it is dry.  Fire will spread.

400

A kind of organism is __________ when there are no more left alive.

extinct

400

Littering is an example of __________.

pollution

500

Sunlight and air are ___________ that help an organism survive.

Resources

500

All the eagles in an ecosystem make up a ___________.

Population

500

How can you determine what an animal ate by looking at its fossil?

Looking at the fossil's teeth

500

By taking shorter showers, you __________ how much water you use.

reduce

500

A kind of organism is __________ when there are only a few of those organisms left.

endangered