Exploring Convection Currents on Planet Earth

The video explains the process of how hot rock rises due to Earth's core heat, spreads, and cools, causing the Earth's crust to slowly drag apart, leading to continental drift. It also covers the carbon cycle, where carbon from dead plankton is carried into the Earth, heated, and released back into the atmosphere during volcanic eruptions, completing a remarkable cycle.

What causes hot rock to rise near the Earth's surface?

• The Sun's radiation

• The Earth's core heating it

• Ocean currents

• Wind patterns

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What happens to the Earth's crust as hot rock spreads and cools?

• It forms mountains

• It sinks into the mantle

• It slowly drags apart

• It becomes denser

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What is carried deep into the Earth during plate collisions?

• Water

• Carbon from dead plankton

• Lava

• Sand

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What happens to the rock as it descends and heats up?

• It turns into diamonds

• It melts and releases carbon dioxide

• It solidifies

• It releases oxygen

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How is carbon dioxide returned to the atmosphere?

• Through plant respiration

• During volcanic eruptions

• Through animal exhalation

• By ocean evaporation

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