Forces and Motion
Engage your readers in science with these hands-on explorations. This ten-book, award-winning, activity-based series illuminates science with clear text, appealing design, and informative experiments. A project with step-by-step instruction on each spread is included in every book.
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accelerate Air flows air pressure aircraft average speed ball balloon balsa wood beam bridges bend bottle bucket called center of gravity centripetal force checkers collision colored Conservation of momentum distance traveled drag drinking straw earth electrostatic force exert faster food coloring force acts friction force fulcrum glue greater gutter heavier hole hook hull Hydraulic inertia keep it moving km/h length lift liquid load loop the loop magnet marbles mass MATERIALS measure modeling clay moving object nails Newton north pole object move paper clip pencil plastic poster board pull pulleys push ramp Repeat the test resistance Richter scale rocket rubber band ruler scientist scissors sheet of cardboard shoe shuttle slow speed or direction sponge Steck-Vaughn streamlined strip strong shapes surface tension sweater tape thin cardboard thread thumbtack track turning force water molecules weighing scales weight wooden board