How Can a Small Child Lift a Grown-Up? ⚖️ Levers: Full Science Lesson for Kids

Does the heavier one always win on a seesaw? ⚖️ Lots of people think so. In this longer lesson for kids aged 8 to 11, we take the block away from under a seesaw, slide a grown-up in towards the middle until a small child balances them, then lifts them, and find the rule behind it. Then we lift a hundred kilogram rock with a crowbar, cut thick card with scissors near the tips and near the pivot, and pop a cap with a bottle opener. Pause and guess at each question, then try the quiz at the end! ▶ Try it yourself, free: https://nowiseewhy.com/levers?from=yt... An interactive 3D lesson for ages 5–11, with a Grown-ups level too. No accounts, and no ads in the lessons. Chapters 0:00 How can a small child lift a grown-up? 0:41 Can the child lift the grown-up? 1:38 Turning pushes 1:59 Where should you push on a crowbar? 2:50 Scissors: tips or pivot? 3:30 A bottle opener 3:52 Quiz time! 4:40 Now you see why Remember: what turns a seesaw is weight times distance from the middle. A child four times lighter balances a grown-up by sitting four times as far out, and with the grown-up a little closer in still, the child lifts them. Levers trade distance for force: push far from the pivot, and a small push lifts a lot, but your hand moves much further than the load. Scissors cut thick card best near the pivot. Try it with a ruler balanced on a pencil and some coins! Got a "why" question? Ask a grown-up to send it at https://nowiseewhy.com/ask #ScienceForKids #Levers #Physics