Structure and Function - Grade 4

The system of the body that brings oxygen and blood to all parts of the body and takes wastes away . This system includes the heart, arteries, veins, and capillaries.

• circulatory system

• digestive system

• nervous system

• ecosystem

The system of the body that breaks down food into tiny particles is called the:

• digestive system

• circulatory system

• nervous system

• ecosystem

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A synonym for external is:

• outside

• inside

• sending

• ecosystem

A type of relationship where one organism relies upon another for its survival is called:

• interdependent

• friendship

• solitary

• needy

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Reflect means:

• to bounce off/bounce back

• to absorb

• to shine

• to turn off

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Check ALL examples of interactions in an ecosystem.

• a deer drinking water from a creek

• a wolf hunting and eating a rabbit

• a flower using the soil to grow

• a person sitting on a park bench

• a snake shedding its skin

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Match the following plant parts to their jobs.

• part where sunlight is absorbed

• leaf

• anchors plant and takes in water

• stem

• carries water from roots to leaves

• phloem

• takes food from leaves to other parts

• roots

The place where your bones meet is called a...

• joint

• limb

• meet-up spot

• muscle

A _______ is a group of related parts that make up a whole.

• system

• joint

• model

• diagram

Check ALL parts of the nervous system.

• brain

• spinal cord

• nerves

• heart

• lungs