Sci 8: Stars & Universe HW #3 2023

How many known planets are in our solar system?

• 4

• 7

• 8

• 9

One of the main differences between the outer and inner planets is __________.

• the inner planets all have water

• the inner planets are much bigger than the outer planets

• the outer planets are gas planets

• the outer planets have do not have rings and the inner planets do

Where is the asteroid belt found?

• Between Earth and Mars

• Between Uranus and Neptune

• Between Mercury and Venus

• Between Mars and Jupiter

What planet has a very hot surface and is most like Earth in size?

• Venus

• Mercury

• Mars

• Uranus

Which property makes Earth unique compared to other planets in the solar system?

• It orbits the Sun.

• It is a rocky planet

• It has liquid water

• It rotates on its axis.

What is the correct order of the planets in the Solar System, starting closest to the Sun?

• Mars, Mercury, Earth, Venus, Jupiter, Saturn, Uranus, Neptune,

• Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

• Mercury, Mars, Venus, Earth, Jupiter, Saturn, Uranus, Neptune,

• Mercury, Venus, Earth, Mars, Jupiter, Neptune, Uranus, Saturn

What do Mercury, Venus, Earth, and Mars all have in common?

• They are all very cold planets.

• They are considered terrestrial planets, that is rocky or have metals with hard surface.

• They are about the same size.

• They are considered gas giants

The four inner planets are rocky and small. Which description best fits the next four outer planets?

• They are also rocky and small.

• They are very large and has no moons

• They are small and made of ice.

• They are very large, made of gases with no solid surface

Which of the following is ordered from largest to smallest?

• Universe -> Galaxy -> Solar System -> Planet

• Planet -> Galaxy -> Solar System -> Universe

• Planet -> Solar System -> Galaxy -> Universe D.) Universe

• Universe -> Solar System -> Galaxy -> Planet

The inner planets are also called a

• Gas giants

• Terrestrial planets

• Large planets

• Asteroid