Unit 3 Review

Penguins have blubber to keep them warm in the Arctic. Why do penguins have blubber?

• To keep warm

• To waddle

• To lay eggs

The arctic is a cold, barren place where polar bears and penguins live. What is the Arctic like?

• warm and nice

• cold and barren

• cold and windy

Camels live in the hot desert. Their humps allow them to go a long time without food. Why do camels have humps?

• To keep warm

• To store fat for food

• To store water

Adaptations help animals survive in their environment. For example, ducks have webbed feet to help them swim. What adaptation do ducks have?

• webbed feet

• sharp teeth

• big claws

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Look at this picture of a desert. Tell me what the environment is like. What plants and animals live in the desert?

Look at this picture of the arctic. Tell me what the environment is like. What kinds of animals live here?