Spark curiosity with 27 exciting at-home science projects for kids! Fun, easy activities that teach science while keeping ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Science kits are a great way to get kids curious about our world and beyond. After all, these kits have ...

When you push or pull with a simple machine, you are applying a force and doing work. And, if you get more force out of a machine than you put into it, then that machine has a mechanical advantage.