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Conduction: The heat transformation from one atom to another.

Radiation: The production of energy waves traveling through a medium.

Convection: The transfer of heat by a heated liquid or gas.

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Convection currents are part of the main three types of heat transfer, the other two being radiation and conduction. Unlike those two, convection can only happen in fluids. This includes gas and liquid due to the fact particles have to move. Some examples of convection are soup and campfires. Did you know hot air rises and cold air sinks? This helps convection work. Convection happens when there is a significant difference between temperature in particles. Convection also gives you that cool breeze on a hot day on the beach.

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How density changes when temperature rises/cools

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How density changes when temperature rises/cools

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Most matter increases when temperature rises. Objects heated will lose density and usually grow in size. This is because the mass stays the same but the volume increases. Increase in volume is called expansion. The decrease in volume is called contraction. There are some exceptions however. For example, when water reaches freezing, it becomes less dense.

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How convection currents work in earths core

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How convection currents work in earths core

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An example of a convection current is warm air rising to the ceiling of a house. This is because warm air is less d
ense than air. There are also convection currents in the ocean which is caused by different densities and temperatures in the water. In the core of the earth heat circles and it makes rock turn into magma. The heat circles and makes the magma flow. The circling magma can make the tectonic plates shift. All this is slow moving.

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What is a hot spring? A hot spring of naturally hot water, usually heated by volcanic activity.

Convection helps hot springs by making it so heat can transfer from one area of  the water to the other, making the now hot water rise.

Heated rocks and magma, usually very far down, heat the water in the spring around it. Since we know heat rises, the heated water will rise to the surface.

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The convection of molten rock in the under areas of the hot springs transfers heat throughout the springs creating convection near the surface.

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1. What is heat transformation from one stone to another?
2. The transfer of heat by a liquid or gas is called what?
3. what can convection travel through
4. give two examples of convection described in the passage
5. What happens to matter when tempature increases?
6. Does water become more or less dense when tempature decreases?
7.What does circling heat turn rock into in the crust?
8.Where else in the world can you find convection?
9. What is a hot spring?
10. How does a hot spring work?