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The Brain Controls the Body

Understand that the brain is the body’s control centre: it receives messages from the senses, thinks and makes decisions, and sends messages through nerves to tell muscles what to do

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What a learner can do afterwards

  • State that the brain is inside the skull and controls the whole body
  • Describe the basic loop: senses send information to the brain, the brain decides what to do, and sends messages to muscles
  • Give an example (e.g. eyes see a ball coming, brain decides to catch it, nerves tell hands to move)

The lesson

Your brain sits inside your skull, safe and snug. It is the boss of your whole body. It tells every part what to do.

Eyes seeBrain thinksHands move
Senses see it, the brain decides, then muscles move.
Try it together

A ball flies toward Mia. Her eyes see it come. Her brain decides to catch it. Nerves carry the message fast. Her hands move and catch the ball.

Ball comesBrain thinksHands catch
Good to know

Your brain never stops working, even while you sleep. It keeps your heart beating and your lungs breathing all night.

The brain is the body's boss. It senses, decides, and tells muscles what to do.

Watch it

Where it sits

Learn first

Nothing; this is a starting point.

This opens up

Where this leads

Jobs that lean on this skill. Follow one to see everything it is built on.

Then practise

8 questions wait behind this lesson, each with its answer explained. Every answer feeds the sky: stars light as they are learned, and dim when it is time to come back.

The Brain Controls the Body · Science, ages 5 to 7 · LightMySky