Life on Earth

What is the main source of energy for life on Earth?

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Why is water important for living organisms on Earth?

• It helps regulate temperature.

• It provides oxygen for respiration.

• It creates a greenhouse effect.

• It dissolves many substances.

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NGSS.MS-ESS2-4

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Which planet in our solar system has an atmosphere that is not suitable for life?

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NGSS.MS-LS1-5

What is the role of Earth's atmosphere in regulating temperature?

• It traps heat from the Sun, preventing it from escaping into space.

• It provides oxygen for respiration.

• It dissolves many substances.

• It creates a greenhouse effect.

Why is Earth considered a unique and habitable place in our solar system?

• It has a thick atmosphere composed mainly of carbon dioxide.

• It is the only planet with liquid water on its surface.

•  It has a thin atmosphere with mostly carbon dioxide.

• It is the closest planet to the Sun.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS2-4

NGSS.MS-LS1-6

What are the three main factors that allow life to exist on Earth?

• Proximity of the Sun, presence of water, and composition of the atmosphere

• Proximity of the Moon, presence of rocks, and composition of the soil

• Proximity of the Stars, presence of fire, and composition of the oceans

• Proximity of the Planets, presence of air, and composition of the mountains

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NGSS.MS-ESS2-4

NGSS.MS-ESS2-6

Why is the proximity of the Sun important for life on Earth?

• It provides oxygen for respiration.

• It helps regulate temperature.

• It creates a greenhouse effect.

• It dissolves many substances.

Tags

NGSS.MS-LS1-6

What makes Earth the only known planet capable of supporting life?

• Its thick atmosphere composed mainly of carbon dioxide.

• Its proximity to the Sun.

• Its unique combination of factors: proximity of the Sun, presence of water, and composition of the atmosphere.

• Its thin atmosphere with mostly carbon dioxide.

In order for life as we know it to exist, a planet must have ______________________

• heat

• animals

• liquid water

• solar energy

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

The entire mass of air that surrounds Earth, and is made of 78% nitrogen, 21% oxygen, and traces of other gases is called...

• magnetosphere

• ozone layer

• atmosphere

• none of these