Volcanoes
Volcanoes are mountains with an opening at the top. Liquid rock is under a volcano. Pressure builds inside. The pressure can get high. Then the volcano erupts. Liquid rock shoots out of the opening. The liquid rock flows out. It flows down the mountain. Gas shoots out. The gas fills the air. Hot volcanic ash covers the ground.
Bad things can happen when volcanoes erupt. Ash and liquid rock damage homes. They harm animals and plants. They knock down forests.
Good things can happen when volcanoes erupt, too. Are you surprised?
Volcanic ash improves the soil. It is full of minerals. Liquid rock cools and breaks down. This also helps the soil. Farms near volcanoes do well. They produce lots of vegetables.
Underground water near volcanoes gets very hot. People drill wells. The water comes out as steam. This steam is used to make electricity. Then the steam cools. It becomes hot water again. This water can heat homes.
Volcanoes attract visitors. Some volcanoes create amazing geysers. Tourists wonder at the water shooting up. What a great show!
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