What shape is a magnet? - Horseshoe magnet

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Solids liquids and gases for kids – What are... Have you ever wondered what everything in the world is made from? The answer is matter.Matter is anything that takes up space and has mass.There ...
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DIY Toys for Kids – HOME-MADE TOY ELEVATORS The elevator shown in Fig. 96 is a unique mechanical toy well worth one's making. Release the little car at the top floor, and it will descend to the ...
ELECTRICITY GRID AND POWER POOL Why is electricity the most convenient form of energy to use? It is clean. It can travel over long distances along wires. It can easily be changed int...
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