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THE SUN
Hydrogen is very easy to burn. As you know, the Sun is one big ball of fire. One of the elements that makes the sun burn so brightly is hydrogen.
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WELDING AND BLOWTORCHES
Sometimes you see someone working with a blowtorch, or welding something together. They use gases that can burn very hot and make a bright flame. One of those gases is hydrogen.
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PLANTS AND SUGARS
Hydrogen is in all plants. There are sugars all throughout plants and there is hydrogen in sugar. That's why animals eat plants... For the sugar and the energy.
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CRYOGENICS
Hydrogen is used in something called cryogenics. Cryogenics is a process when scientists freeze things. When hydrogen is in a liquid form it is very, very cold. Scientists use this cold hydrogen to freeze things very quickly.
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