Who knew that the machines of the world are all made of just 6 simple machines working together? Introduce your child to simple machines with this worksheet.

Discover some of the fascinating properties of gravity by studying one of Newton's famous laws, the Law of Gravitation.

Explore the strength of magnetic forces with this worksheet for third and fourth graders!

Determine which magnets have the strongest force in this third- and fourth-grade worksheet!

Get charged up about static electricity with this informative fourth- and fifth-grade worksheet!