U1L5: The Inner Planets

Earth and the other inner planets—Mercury, Venus, and Mars—are also called the ___________ planets

• terrestrial

• alien

• territorial

• coolest

Which of the following describes the inner planets? (Select all that apply)

• Solid rocky material

• Ice and gases

• Smaller in size

• Have No Rings

• Have Many Moons

Like Earth, the other terrestrial planets are made of______________ materials and have a solid outer layer

• rock and metallic

• gas

• dust

• dirt

The inner planets are ___________ in size, with Earth being about two and half times larger than Mercury

• different

• roughly similar

• gigantic

Tags

NGSS.MS-ESS1-3

__________ is the smallest planet and the planet closest to the Sun

• The Moon

• Mercury

• Mars

• Venus

Tags

NGSS.MS-ESS1-3

Mercury’s gravity is not strong enough to hold an atmosphere

• True

• False

Tags

NGSS.HS-PS2-4

Like all inner planets, Mercury has a core made of _____________.

• iron and nickel

• cobalt

• steel

• lava

Tags

NGSS.MS-PS1-1

_______ is the second planet from the Sun and is about the same size as Earth

• Venus

• Mercury

• Mars

• Earth

Tags

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3

The atmosphere of Venus is about

97 percent _____________.

• oxygen

• nitrogen

• carbon monoxide

• carbon dioxide

A thick layer of ____________ covers Venus

• dust

• fog

• acid clouds

• asteroids