Life Science test 1 3rd Grade

What is an organisms habitat?

• the shelter it builds when the seasons change

• the place where it gets everything it needs to survive

• the ways it changes its ecosystem

How do human activities change the environment?Choose all that apply *

• they build roads and houses

• they build crops

• they build dams

• they climb trees

An ecosystems is__________. *

• All the living and nonliving things in an area and the ways they interact.

• to shed your leaves

• to move to a different place

When an animal HIBERNATES in winter, its body does not use much energy.

• true

• false

When animals MUTATE, they move to a different place to meet their basic needs. *

• true

• false

DECIDUOUS trees keep their leaves all year long. *

• true

• false

Check everything on the list that is NON-LIVING that is in a forest ecosystem *

• mud

• stone

• fish

• green trees

• sun light

What are the two main seasons in the grasslands of East Africa. Choose 2 ANSWERS *

• dry season

• drought

• rainy season

A beaver's dam will stop water water from going down a stream and protect them from predators. *

• true

• false

Why do animals need protection from predators? *

• animals will eat them

• live with them

• hunt with them