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Your brain is inside your head. It is kept safe in a hard, bony shell: your skull.

Your brain helps you think, remember, plan and imagine.

Your brain is joined to your spinal cord, and nerves go out to all the other parts of your body.

Messages travel in to the brain from your senses, like your eyes and ears. Messages travel out from the brain to your muscles, so you can move.

Experiment: Catch the ruler!

1. Work in pairs. One person holds the ruler at the top so it hangs down. The 0 end is at the bottom.
2. The catcher holds a thumb and finger open at the bottom of the ruler, not touching it.
3. The holder lets go without warning. The catcher catches it as fast as they can!
4. Look at the number just above the catcher's fingers. Write it down.
5. Try three times. Is your number getting smaller? A small number means you were quick!

	Number where I caught it
Try 1	Guess: will you get quicker with practice?
Try 2	Guess: will you get quicker with practice?
Try 3	Guess: will you get quicker with practice?

Questions

1. Draw a head. Draw the brain inside and the skull around it.

   🍎

2. Which part of your body keeps your brain safe?

3. When I see something, the message goes…

   in to the brain / out to the muscles

4. In the ruler game, did you get quicker? What was your best number?

Sources for every fact on this sheet: echoesof.science/school/brain/sources/

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