Students read about and discuss the force of gravity and examine an equation that relates the force of gravity to the mass of an object. They participate in an activity using water and household objects to demonstrate the force of gravity
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Heart and Circulation: Pre- and Post-Assessments
Middle schoolers demonstrate what they know about the structure and function of the heart and blood vessels. A set of 15 multiple-choice questions also addresses how the heart handles microgravity and how animals without circulatory...
5th - 8th Science