Predict how your body sends messages — the brain is in charge, with nerve signals to move and feel.
A free, no-signup, no-ads science game for Grades 3–6 — predict what will happen, watch the real result, and see why. Explore all science games or more human body games.
More like this: The Five SensesTeethThe Skeleton
Your brain is in charge of your whole body. It sends and gets messages through your nerves — fast electrical signals that let you move and feel. A reflex is a super-fast signal that pulls you away from danger.
A free, no-signup, no-ads science game for Grades 3–6 — predict how a message travels, watch the signal race along the nerve, and learn why. Explore more science games.