4.1 Review The Solar System

From 1 to 4, what objects match the definitions in the table?

• Moon, asteroid, Kuiper belt, sun

• Asteroid, comet, Oort cloud, sun

• Asteroid, asteroid, Oort cloud, comet

• Moon, comet, Kuiper belt, planet

Answer explanation

The correct choice is 'Moon, asteroid, Kuiper belt, sun' as it accurately matches the definitions: Moon (natural satellite), asteroid (rocky body), Kuiper belt (region of icy bodies), and sun (star).

Tags

NGSS.MS-ESS1-3

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Which planets are closest to the sun and have rocky crusts, dense mantles, and cores? Choose all correct answers.

• Jupiter

• Earth

• Mars

• Mercury

• Venus

Answer explanation

The correct answers are Earth, Mars, Mercury, and Venus. These planets are terrestrial, meaning they have rocky crusts, dense mantles, and cores, distinguishing them from gas giants like Jupiter.

Look at the image of the meteorites in space. True or False? Meteors are asteroids or comets that enter Earth's atmosphere and burn.

• True

• False

Answer explanation

True. Meteors are indeed fragments from asteroids or comets that enter Earth's atmosphere and burn up, creating a visible streak of light. Thus, the statement is correct.

Tags

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Look at the image of the Oort Cloud. True or false? The Oort Cloud is a spherical region that surrounds our solar system like a shell, thousands of astronomical units away from the sun. It contains some long-period comets.

• True

• False

Answer explanation

True. The Oort Cloud is indeed a spherical region surrounding our solar system, located thousands of astronomical units from the Sun, and it is known to contain long-period comets.

Tags

NGSS.MS-ESS1-3

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Describe the locations and movements of the sun, planets, and moons.

Answer explanation

The sun is at the center of the solar system, with planets orbiting in elliptical paths. Moons orbit their respective planets, influenced by gravity, creating a dynamic system of celestial movements.

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Describe the physical properties of the sun, inner and outer planets, and their moons.

Answer explanation

The Sun is a massive ball of gas, primarily hydrogen and helium, with extreme temperatures. Inner planets (Mercury, Venus, Earth, Mars) are rocky, while outer planets (Jupiter, Saturn, Uranus, Neptune) are gas giants. Moons vary in composition.

Tags

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