Habitable Planets

Front

What are greenhouse gases?

Back

Greenhouse gases are gases in Earth's atmosphere that trap heat, helping to regulate the planet's temperature. Examples include carbon dioxide, methane, and water vapor.

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NGSS.MS-ESS3-4

NGSS.MS-ESS3-5

Front

What role does the atmosphere play in protecting Earth?

Back

The atmosphere protects Earth from harmful radiation from the Sun and helps maintain a stable temperature for life.

Front

Why is Earth's distance from the Sun important for life?

Back

Earth's distance from the Sun allows for moderate temperatures, which are essential for sustaining life.

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NGSS.MS-ESS1-1

Front

What is one characteristic that does NOT support life on Earth?

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Constant volcanic activity does not support life, while the presence of water and a suitable atmosphere do.

Front

How does sunlight contribute to life on Earth?

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Sunlight is crucial for photosynthesis, the process by which plants convert light energy into chemical energy, providing food and oxygen for other living organisms.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Front

What is the significance of liquid water for life?

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Liquid water is essential for all known forms of life as it serves as a solvent for biochemical reactions and is necessary for cellular processes.

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NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Front

What is the Goldilocks Zone?

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The Goldilocks Zone is the region around a star where conditions are just right for liquid water to exist, making it suitable for life.

Front

What is the importance of a planet's atmosphere?

Back

A planet's atmosphere is important for regulating temperature, protecting from radiation, and providing essential gases for life.

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What are the main components of Earth's atmosphere?

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The main components of Earth's atmosphere include nitrogen (78%), oxygen (21%), and trace amounts of other gases like carbon dioxide and argon.

Front

How does gravity affect a planet's ability to support life?

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Gravity helps retain an atmosphere, which is crucial for temperature regulation and protection from space debris.