6H UNIT 1

A student is making a model of the solar system. They choose a ball with a 14 cm diameter to represent Jupiter. According to the above table, what size ball would be the best choice to represent Earth?

• 0.5 cm

• 1.2 cm

• 12 cm

• 16 cm

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NGSS.MS-ESS1-3

Describe the orbital path of most planets in our solar system?

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NGSS.MS-PS2-4

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Which of the following represents characteristics of the four planets farthest from the Sun?

• Smaller planets

• Gas giants

• Rocky (terrestrial) planets

• 3 or less moons

The Sun is the center of our solar system and creates a large amount of gravitational force. If this system lost the Sun, what would happen to the planets?

• The planets would explode.

• The planets would stop moving.

• The planets would travel on a different path.

• The planets would continue on their same path.

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How is it depending on the size, mass, and density of an object, the gravitational force it exerts varies? Explain short.

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Which statement typically demonstrates the relationship between the mass of a celestial body and its gravitational pull?

• Mercury has the least mass of the planets in the solar system, so it has the greatest gravitational pull.

• Venus has less mass than Earth, so Earth has a lesser gravitational pull.

• Jupiter has the greatest mass of the planets in the solar system, so it has the greatest gravitational pull.

• The mass of a celestial body is not related to its gravitational pull on other bodies.

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All of the following are ways that the atmosphere makes the existence of life on earth possible EXCEPT —

• maintains a constant temperature

• shields Earth from small collisions

• offers protection from radiation

• allows for gas exchange between plants and animals

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NGSS.MS-LS2-3

Which two characteristics of the Earth allow life to exist?

• Presence of water and suitable atmosphere

• Extreme temperatures and lack of water

• No atmosphere and high radiation

• Constant volcanic eruptions and toxic gases

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NGSS.MS-LS1-6

During a star’s life cycle, it can become a white dwarf, black hole, or neutron star. What determines what the star will become?

• Color

• Mass

• Luminosity

• Temperature

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Which two lines of evidence support the Big Bang theory as an explanation of the origin of the Universe?

• Cosmic microwave background radiation and the redshift of galaxies

• The existence of black holes and the shape of the Milky Way

• The presence of asteroids and the phases of the Moon

• The orbit of planets and the tilt of Earth's axis

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