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Tallying and Tally Marks – What is Tallying? Can you imagine a time when people did not use numbers?The first people on earth lived by hunting wild animals and collecting wild fruit and nuts.They...
Renewable and Nonrenewable Energy Resources The world is full of movement.Trees move in the wind.Aircraft fly in the air.Ships sail on the sea.People and animals move around.None of these things...
HOW DOES NUCLEAR POWER WORK Nuclear energy is the most powerful form of energy in the universe. There are two ways of producing it and both ways release enormous amounts of energ...
Electricity for Kids – What is a Transformer... A transformer can make an electric current smaller or larger. As an electric current flows along the wires from a power station, it loses energy. A ...
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