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There are many objects in a galaxy. Which of the following Milky Way objects can best be observed without a telescope?

• dust

• gases

• stars

• asteroids

What would an astronomer expect to find in a galaxy?

• stars, but not planets

• planets, but not stars

• stars, planets, and other objects

• planest, gases, and a single star

Tags

NGSS.MS-ESS1-2

Planets are ordered at different distances from the Sun. Which two planets are closer to the Sun than Earth is?

• Mars and Jupiter

• Mars and Mercury

• Venus and Jupiter

• Mercury and Venus

Tags

NGSS.MS-ESS1-3

Ben drew this picture of part of the solar system. What are the many scattered dots that he drew between the orbits of Mars and Jupiter most likely to be?

• comets

• asteriods

• hundreds of dwarf planets

• moons that orbit the planets

Tags

NGSS.MS-ESS1-3

How is an asteroid different from a planet?

• It is smaller.

• It is in orbit around the Sun.

• It is outside of the solar system.

• It has a long tail made of dust and gas.

Venus is sometimes called the "evening star" when it is seen in the western sky after sunset. Why is this NOT an accurate name for Venus?

• Venus is a planet, not a star.

• Planets can be seen in the sky only after sunset.

• Other stars can be seen in the sky after sunset.

• Venus can be seen during the day, but not in the evening.

Jaynelle made a two-column chart to compare comets and asteroids. Which of these properties belongs in BOTH columns of her chart?

• has a long tail

• orbits the Sun

• is a made of gas, ice, and dust

• probably caused craters on the Moon

Which one of the following is NOT true of stars?

• Stars create energy by burning gases in their cores.

• Stars have a larger gravitational force than planets.

• Stars are primarily made of hydrogen and helium.

• Stars have much smaller masses than planets.

Which statement about planets is true?

• Planets orbit around Earth.

• Planets orbit around moons.

• Planets orbit around the Sun.

• Planets do not have an orbit.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

The scale drawing below shows the sizes of three Solar System objects compared to the Earth.

Object 2 is made mostly of rock and metal. It orbits the sun between the paths of Mars and Jupiter.

Object 2 is MOST LIKELY ___________.

• an asteroid

• a comet

• a dwarf planet

• a star

Tags

NGSS.MS-ESS1-3