1: What is your skeleton?
a) A collection of muscles
b) A framework for your body made of bones
c) A scary costume you wear at Halloween

3: How many bones did you have in your body when you
were born?
a) About 200
b) About 500
c) About 300

5: Which of these statements is true?
a) Your baby skeleton was made completely of bones.
b) As you grew from a baby to a child, cartilage in your skeleton
turned to hard bone.
c) As you grew from a baby to a child, bones in your skeleton
turned to cartilage.

7: How old will you be when you stop growing?
a) About 12 years old
b) About 25 years old
c) About 50 years old

9: How many permanent teeth will you have by the time
you are about 12 years old?
a) 28
b) 20
c) 38

2: When you were born, what were some parts of your
skeleton made of?
a) Cartilage
b) Muscles
c) Skin

4: How many bones will you have when you are an adult?
a) About 300
b) 110
c) 206

6: As you get older, you grow bigger. Why?
a) Because your bones grow larger
b) Because your muscles and skin stretch
c) Because you get taller each time you eat vegetables

8: Which statement is false?
a) By the time you were three or four you had 20 baby teeth.
b) Your baby teeth fall out and allow your permanent teeth
to grow.
c) Your permanent teeth fall out and allow your baby teeth
to grow.

10: Which part of your body controls everything you do?
a) Your brain
b) Your heart
c) Your skeleton

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version of these questions.

11: How does your brain send instructions to all the parts
of your body?
a) Through your blood
b) Along tubes in your skeleton
c) Along pathways made of nerve cells

13: Which statement is false?
a) As a baby, you learned to talk by listening to people.
b) As a baby, you copied the noises people made.
c) You knew how to talk as soon as you were born.

14: How many new words do you learn each day?
a) About 10
b) About 1
c) About 1,000

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the quiz again.

12: How did you learn to walk?
a) Your muscles and bones knew what to do as soon as you
were born.
b) Your brain made pathways to your muscles and then sent
walking instructions along those pathways.
c) You went to a walking class at pre-school.