How do people move pianos and heavy furniture into tall buildings? Show your kids some pulley potential with this simple household exercise!

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

If your child aspires to be the next Frank Lloyd Wright, we've got some tips on building sand castles that last.

Learn about this simple machine and make a pulley of your own to use for fun science trials.