Life Science Unit Test 3rd grade

Front

ecosystem

Back

All the living and nonliving things in an area.

Front

habitat

Back

The place where a plant or animal lives and gets everything it needs to survive.

Front

migrate

Back

to move to a different place to meet basic needs.

Front

predators

Back

animals that want to eat other animals.

Front

hibernation

Back

An animal’s body is inactive in the winter, so it does not need to eat.

Front

How does a fire affect the forest ecosystem?

Back

Fire burns trees and other plants. Some animals die, move, or stay. Fire helps things grow and adds nutrients to the soil.

Front

What are some natural events that cause animals to move?

Back

Finding food and water. Changes in temperature.

Front

How do construction activities affect ecosystems?

Back

Decrease the amount of food and space available for animals.

Front

How can people help improve ecosystems for wildlife?

Back

by planting rooftop gardens and planting new trees.

Front

Fossils

Back

Traces of plants, animals, and other organisms that lived long ago.