Students explore physical science by conducting a measurement experiment. In this mass lesson, students identify the differences between mass and weight and define a list of other vocabulary terms. Students utilize electronic scales and...

Students investigate Newton's Second Law of Motion as they predict the effect of a payload on the amount of energy needed to lift a rocket vertically. The constraints of the weight of the equipment carried to Mars is compared to the...

Fourth graders study the equilibrium of internal forces in a main sequence star.

Students explain basic principles of aeronautics such as gravity and lift. In this How Things Fly lesson, students visit the interactive, hands-on How Things Fly gallery at the Smithsonian. Students perform three experiments that...