Science Assessment Week 8

Elyse is studying different ways that animals’ external structures help protect them. Which structure should Elyse study?

• heart

• scales

• skeleton

• lungs

Look at the picture. Which external structure protects the animal shown?

• scales

• skin

• feathers

• exoskeleton

Which describes an external characteristic of an animal?

• a bear’s loud roar

• a bird’s blue feathers

• a human’s long bones

• a cat’s rigid skeleton

Which external structure of an animal provides the best protection from a very wet environment?

Select the best example of an exoskeleton protecting an animal.

Help them see water and danger. Let them listen for sounds in the desert. Feel the heat of the sand and ground. Help them smell food and water from far away. Help them choose the right plants to eat.

An animal's survival often depends on the way it responds to a change in its environment. Many (penguins / birds / bears) fly south in search of warmer temperatures. Bears (hibernate / migrate / form groups) in cold weather when there is less food. Penguins (migrate, hibernate, huddle) together in groups to keep warm and safe from predators. Some animals, such as deer (form groups, migrate, huddle) for safety and are often better to communicate that a predator is nearby.

• penguins

• hibernate

• migrate

• form groups

Explain how you survive changes in your environment.

Write TRUE if the statement is correct and FALSE if it is wrong. Jamal makes a claim that the heart supports the body during exercise by increasing the amount of blood that is sent to all its organs. He tested his claim by measuring the pulse of three people before and after they exercised. Jamal recorded his data in a table. The heart beats faster before exercise than after exercise.

The heart beats faster after exercise than before exercise.