Blue
Green
Yellow
Orange
100

You use it to smell.

Nose

100

You use them to see.

eyes

100

You use them to walk

legs

100

You use them to chew food.

teeth

200

You have ten (on your feet)

Toes.

200

Your hair grows on this. 

Head. 

200

You use them to hear.

ears

200

You have ten (on your hands).

Hands.

300

You wear shoes on them.

feet

300

You have two between your arms and your neck.

shoulders

300

__ball. (Hint: plural is feet.  

Foot. 
300

You use them to touch.

fingers/hands

400

You have it on top of your head.

Hair.

400

If you break them, it will be hard to walk. 

legs

400

You have two on your legs. They help your legs to bend

knees

400

The part of the arm that bends.

elbow