Exploring The Universe Review

Which does NOT affect how strongly the Sun pulls on an object in space?

• the mass of the object

• how far the object is away from the Sun

• the fact that the Sun is made of a mixture of gases

• the mass of the Sun

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Some objects in our solar system are classified as moons, even though they are larger than objects classified as planets because

• Moons can orbit moons, planets, and suns.

• Planets and moons are basically the same thing.

• Planets can orbit moons, asteroids, and comets.

• Planets must orbit the Sun. Moons orbit planets.

Two of the inner planets are ____.

• Venus and Saturn

• Mars and Venus

• Earth and Pluto

• Mercury and Jupiter

The order of the inner planets outward from the Sun is ____. Mark only one oval.

• Mercury, Earth, Venus, and Mars

• Mercury, Venus, Earth, and Mars

• Mars, Venus, Earth, and Mercury

• Earth, Venus, Mars, and Mercury

A galaxy that has a shape similar to a football is a(n) ____ galaxy.

• Normal Spiral

• Barred Spiral

• Elliptical

• Irregular

Which does NOT describe our Sun?

• it is part of the Milky Way galaxy

• it holds 99% of the mass in the solar system

• it is one of billions of stars

• it is the center of the universe

Which of the following is defined as a huge collection of gas, dust, and stars held together by gravity?

• nebula

• solar system

• universe

• planet

As the solar system cooled and developed, larger bodies were pushed away from its center by gravity.

• True

• False

Tags

NGSS.MS-ESS1-2

Planet A

• Earth

• Saturn

• Venus

• Mercury

• Uranus

Tags

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3

Planet F

• Earth

• Saturn

• Venus

• Mercury

• Uranus

Tags

NGSS.MS-ESS1-3