1) Write down the word that describes each of the following:
a: A frame made of bone that supports our body.
b: A bone in the spine.
c: The bones of the head.
d: Animals with no skeleton.
e: The parts of the body that allow our bones to move.
2) Write down the name of one:
a: flat bone
b: long bone
c: short bone
d: irregular bone.
3) Look at the drawing and answer the questions.

a: Write down the number of the muscle that bends the arm.
b: Explain how the muscle makes the arm bend.
c: What happens to the other muscle when the arm bends?
4) Josie, Yasmin and Luisa measured the length of their upper arm bones. These are their results.
| Luisa | Yasmin | Josie | |
| 28 | 32 | 25 | Bone length in cm |
a: Who do you think is an adult?
b: Who do you think is a teenager?
c: Who do you think is a child?
d: Explain your answers to questions a-c.
e: How else could you show these results?
f: What apparatus do you need to measure bone length?
g: Explain how you can make this a fair test.
5) a Name two reasons why we take medicines.
b: Which of these statements about medicines are true?
A- All medicines are drugs.
B- Medicines give us symptoms of illnesses.
C- Never take medicines prescribed for someone else.
D- Medicines can kill harmful germs in the body.
E- Stop taking prescribed medicines when you start to feel better.