PBS
Pbs Learning Media: That's My Theory!
Become a game show contestant in this online activity from A Science Odyssey and ask a series of questions to a panel of mystery scientists, using the answers to determine which scientist is Einstein.
Science4Fun
Science4 Fun: Gravity
Peruse this resource to learn about gravity, its importance, the Universal Law of Gravitation, the difference between mass and weight, and more fun facts.
CK-12 Foundation
Ck 12: Fifth Grade Science: Earth Science: Gravity
Do you know how gravity affects you? This module defines gravity and explains how gravity affects the motion of objects.