Our Solar System

Which inner planet is the hottest?

• Mercury
• Venus
• Earth
• Mars

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which two inner planets have no moons?

• Mercury

• Venus

• Earth

• Mars

What covers most of Mercury's surface?

• gases

• volcanoes

• craters

• water

Mars has a red surface because of what mineral?

• iron
• lead
• plastic
• gold

Which statement is true of the inner planets?

• They take longer to orbit the sun.

• They orbit the sun faster.

The air on Venus is mostly ____.

• carbon dioxide
• oxygen
• sulfur

Which planet do we think once had liquid water on it?

• Mercury

• Venus

• Mars

• Saturn

_____ is a planet with massive volcanoes and canyons; and seasons similar to Earth.

• Mercury

• Venus

• Mars

• Jupiter

Which of the following planets has a much stronger greenhouse effect due to a high amount of CO₂?

• Venus

• Earth

• Mars

• Mercury

Scientists have been able to find no atmosphere around this planet because it has little gravity and is closest to the sun.

• Mars

• Venus

• Mercury

• Earth