Life on Earth, Rockets & Space Exploration

Of the planets in the solar system, which characteristic is unique to planet Earth?

• orbited by a moon

• has a gravitational field

• revolves around the Sun

• covered mostly by water

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NGSS.MS-ESS2-4

How does gravity support life on Earth?

• by forcing Earth to continuously spin on its axis, which contributes to

  day and night

• by causing changes in the distance between Earth and the sun, which contributes to the seasons

• by keeping water and gases in the atmosphere close to Earth’s

  surface, which contributes to life processes

• by preventing meteors and comets from hitting Earth’s surface, which protects living organisms from space fragments

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Organisms can live on Earth because of Earth’s location in the solar system. How does Earth’s distance from the Sun MOST affect Earth’s water and enable life to exist?

• It permits liquid water.

• It allows water to freeze.

• It changes water’s specific gravity.

• It allows water to be salty or fresh.

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NGSS.MS-ESS2-4

Life is more likely to be found on a planet whose atmosphere contains abundant

• neon.

• oxygen.

• hydrogen.

• sulfur dioxide.

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NGSS.HS-ESS2-4

All of the planets in the solar system formed at about the same time from a large cloud of gas and dust. How is Earth different from other planets in the solar system?

• Earth has no natural satellites.

• Earth’s atmosphere is composed of gases.

• Water is found in all three phases on Earth.

• Volcanoes release liquid rock onto Earth’s surface.

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Earth’s distance from the Sun helps the planet sustain life. If the Sun were larger, what would MOST likely also have to be true for Earth to sustain life?

• Earth would have to be further from the Sun.

• Earth would have to be closer to the Sun.

• Earth would have to be smaller.

• Earth would have to be larger.

Which contributes to Earth’s ability to sustain life?

• The atmosphere allows all of the sun’s radiation to enter due to

  Earth’s distance from the sun.

• The atmosphere prevents all space debris from reaching the surface

  due to the ozone layer.

• The atmosphere is extremely thin due to the temperatures of the sun.

• The atmosphere is breathable due to the unique mixture of gases.

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Which of the following is MOST necessary for life to develop on another planet?

• liquid water

• rocky surfaces

• warm soil

• atmospheric oxygen

Which of these conditions is MOST responsible for Earth having an environment that supports life?

• oceans regulating climate on land

• the percentage of nitrogen in the atmosphere

• water that exists in all three physical states of matter

• erupting volcanoes moderating atmospheric temperatures

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A telescope would be MOST useful in answering which question?

• How do rockets move in space?

• What shape is a human skin cell?

• What is on the surface of the Moon?

• How do worms breathe underground?

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