How many simple machines do you use every day? Probably more than you realizeMachines make work easier-- helping break things apart, lift heavy objects, and change the power and direction...
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It can be surprising which objects float and which don't. An apple floats, but a ball of aluminum foil does not. If that same ball of foil is shaped into a boat, it floats Why?...
Equip the next generation of scientists with the physics facts they need to know from one of the most trusted names in STEM books for children. David A. Adler's kid-friendly introduction...
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Explore physics in this early introduction to the states of matter, starring a goofy dog and his all-too-human family. Zippy art and clear explanations introduce the basic characteristics...
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