Atmosphere

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What is the atmosphere?

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The atmosphere is a layer of gases surrounding the Earth, essential for life, providing oxygen, and protecting from harmful solar radiation.

Tags

NGSS.MS-ESS2-5

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What are the main layers of the atmosphere?

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The main layers of the atmosphere are the Troposphere, Stratosphere, Mesosphere, Thermosphere, and Exosphere.

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What is the Troposphere?

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The Troposphere is the lowest layer of the atmosphere, where weather occurs and where we live.

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What is the Stratosphere?

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The Stratosphere is the second layer of the atmosphere, above the Troposphere, where jets usually fly and contains the ozone layer.

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What is the Mesosphere?

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The Mesosphere is the third layer of the atmosphere, located above the Stratosphere, where temperatures decrease with altitude.

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What is the Thermosphere?

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The Thermosphere is the fourth layer of the atmosphere, characterized by high temperatures and where the auroras occur.

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What is conduction?

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Conduction is the transfer of heat through direct contact between materials.

Tags

NGSS.MS-PS3-3

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What is convection?

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Convection is the transfer of heat through the movement of fluids (liquids and gases) caused by differences in temperature.

Tags

NGSS.MS-ESS2-6

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What is radiation?

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Radiation is the transfer of heat in the form of electromagnetic waves, such as sunlight.

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What is the role of the ozone layer?

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The ozone layer, located in the Stratosphere, protects living organisms by absorbing most of the sun's harmful ultraviolet radiation.