Robert Gardner
How are sounds produced? Does light travel in a specific path? Are all shadows black? Using easy-to-find materials and the scientific method, you can learn the answers to these questions and more. If you are interested in competing in science fairs, the book contains lots of great suggestions and ideas for further experiments.
Have you waited until the last minute to start your science project? Don't worry, award-winning author Robert Gardner has you covered! Each experiment in SIMPLE MACHING EXPERIMENTS USING SEESAWS, WHEELS, PULLEYS, AND MORE follows the scientific method, and can be completed in an hour or less. Explore using levers to control motion and lift, and how the steepness of inclined planes affects the force needed to move something. Most experiments also
...Award-winning author Robert Gardner comes to the rescue of busy students everywhere. Each experiment in SOLIDS, LIQUIDS, AND GASES EXPERIMENTS USING WATER, AIR, MARBLES, AND MORE follows the scientific method, and is designed to be completed in under an hour. Discover how to weigh air, estimate the volume of matter, and the science of why water holds together. There are also ideas for more science experiments if you have extra time.
How can you tell if a moving object is accelerating? Why are pulleys used to lift objects? Can you observe weightlessness in everyday situations? Using easy-to-find materials and the scientific method, you can learn the answers to these questions and more. If you are interested in competing in science fairs, the book contains lots of great suggestions and ideas for further experiments.