Geothermal energy is heat from deep inside the Earth that we can use to make electricity or keep things warm.
Imagine you have a big hot water bottle buried under your bed, it keeps you warm all night. The Earth is like that hot water bottle, but way bigger and way deeper. The heat comes from molten rock (called magma) and hot rocks deep underground. This heat warms up the water around it, and sometimes we can reach that warm water through holes in the ground.
How We Use It
Sometimes, people drill into the ground to bring hot water or steam up to the surface. That steam can turn a turbine, which makes electricity, kind of like how a windmill turns with the wind. In some places, the hot water is used directly, like in geothermal heating for homes and buildings.
A Real-Life Example
In Iceland, many homes are heated by geothermal energy. The Earth’s heat comes up through cracks in the ground, and people use that warm water to keep their houses cozy, just like how a hot bath feels nice on a cold day!
Examples
- A child uses a thermometer to measure the temperature of a hot spring and learns it's geothermal energy.
- A town gets electricity from underground heat, like boiling water.
- People use steam from inside the Earth to make machines work.
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See also
- Geology in a Minute - What is Geology?
- Do wind turbines consume more energy than they produce in a lifetime?
- Ask Series | What are Mountains?
- How Do Glaciers Move? TIMELAPSE! | Earth Science?
- How could superhot rocks underground help power Australia?