Science Unit 1 Review

Vocabulary

100

The hard parts in your body that give you shape.

Bones

200

This is what something does or is supposed to do

Function

300

This is the part of body where two bones come together and can bend.

Joint

400

This word describes an animal that is active at night.

Nocturnal

500

This body system includes the brain and all nerves inside of the body. 

Nervous System

Eyes

100

This is the dark opening in the center of the eye.

Pupil

200

This is the clear layer at the front of the eye and acts like a lens. 

Cornea

300

This is the colored part of the eye and is shaped like a donut.

Iris

400

This is the part at the back of the eye that sends signals to the brain.

Retina

500

Put these steps in the correct order. 

Eye, Sun, Retina

Sun -> Eye -> Retina

Nerves

100

These body parts carry messages back and forth between the body and brain.

Nerves

200

These nerves carry signals from the brain to muscles.

Motor Nerves

300

These nerves carry signals from the senses, such as sounds, sights, and smells.

Sensory Nerves

400

After a person sees a penny, this body part makes the decision to pick it up.

Brain

500

A person hears a cat purring and then covers their ears. Put these steps in order.

1. Sensory nerves send a message to the brain.

2. The person covers their ears.

3. Motor nerves send a message to the arm and hand muscles. 

4. The ears sense the purring. 

5. The brain makes a decision.

1. The ears sense the purring.
2. Sensory nerves send a message to the brain.
3. The brain makes a decision.
4. Motor nerves send a message to the arm and hand muscles.
5. The person covers their ears.

Muscles

100

This part of the body attaches to the bones and helps it move.

Muscle

200

This part of the body attaches muscles to bones.

Tendon

300

A superhero has muscles, but no bones. Why would the superhero have trouble moving?

Muscles need bones to be able to move. 

400

When you bend your elbow, this part of the body lets the the bone bend. 

Joint

500

Name the three body parts that work together when you lift your backpack: hard parts that give shape, parts that move the body, and parts that connect muscles to bones. 

Bones, Muscles, and Tendons

Riddles

100

I connect a muscle to a bone. I help your body move. What am I?

Tendon

200

I am a clear layer at the front of your eye. Light travels through me. What am I?

Cornea

300

I am at the back of your eye. I sense light and send messages to the brain. What am I?

Retina

400

 I carry messages from your brain to your muscles. I help your body move when you make a choice. What am I?

Motor Nerves

500

 I include your brain and all the nerves in your body. I help your body send and receive messages. What am I?

Nervous System