The Atmosphere Around You

Front

Atmosphere Noun

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[at-muh-sfeer]

Back

Atmosphere

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The thin envelope of gases surrounding a planet, which protects life and helps regulate the planet's temperature.

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Example: The image shows Earth's atmosphere layers, helping students learn how it protects life and regulates temperature.

Front

Air Pressure Noun

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[air presh-er]

Back

Air Pressure

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The force exerted by the weight of the column of air above a specific point on Earth's surface.

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Example: The image shows how air pressure is higher at lower altitudes and lower at higher altitudes using a seesaw analogy.

Front

Altitude Noun

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[al-ti-tood]

Back

Altitude

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The vertical distance or height of an object or point in relation to sea level or ground level.

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Example: The image shows how atmospheric pressure changes with altitude, illustrating height differences from sea level.

Front

Wind Noun

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[wind]

Back

Wind

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The natural movement of air parallel to Earth's surface, which is caused by differences in air pressure.

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Example: Arrows show wind direction across Earth, illustrating air movement due to pressure differences.

Front

Stable Adjective

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[stey-buhl]

Back

Stable

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Describing a condition that is not likely to change or fail, remaining relatively constant and unchanging over time.

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Example: A stable structure like a house or beaver dam remains constant and unchanged over time.

Front

Water Vapor Noun

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[waw-ter vey-per]

Back

Water Vapor

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The invisible, gaseous form of water that is present in the atmosphere and plays a crucial role in weather.

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Example: Water vapor rises from a river, forms clouds, and leads to rain, showing its role in weather.

Front

Density Noun

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[den-si-tee]

Back

Density

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The measure of how much mass is contained within a given volume of a substance, such as air.

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Example: Objects with different densities in water show how some float and others sink, explaining density.

Front

Troposphere Noun

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[troh-puh-sfeer]

Back

Troposphere

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The lowest layer of Earth's atmosphere, extending from the surface upwards, where all weather phenomena occur.

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Example: The troposphere is the lowest layer of the atmosphere where weather happens.

Front

Stratosphere Noun

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[strat-uh-sfeer]

Back

Stratosphere

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The atmospheric layer above the troposphere, which contains the ozone layer that absorbs harmful ultraviolet solar radiation.

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Example: The image shows the ozone layer in the stratosphere blocking harmful UV rays from the sun.

Front

Mesosphere Noun

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[mes-o-sfeer]

Back

Mesosphere

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The atmospheric layer above the stratosphere where most meteoroids burn up due to friction with air particles.

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Example: The mesosphere is where meteoroids burn up, located above the stratosphere.