Four inner planets

What is the primary source of energy for the Sun?

• Nuclear fission

• Nuclear fusion

• Chemical reactions

• Gravitational contraction

Tags

NGSS.HS-ESS1-1

Which planet is closest to the Sun?

• Venus

• Earth

• Mercury

• Mars

What is the hottest planet in our solar system?

• Mercury

• Venus

• Earth

• Mars

Which planet is known as the "Red Planet"?

• Mercury

• Venus

• Earth

• Mars

What is the main component of the Sun's atmosphere?

• Oxygen

• Hydrogen

• Carbon dioxide

• Nitrogen

Which planet has the longest day (rotation period) in our solar system?

• Mercury

• Venus

• Earth

• Mars

What is the average distance from the Earth to the Sun?

• 93 million miles

• 150 million kilometers

• 1 million miles

• 10 million kilometers

Tags

NGSS.MS-ESS1-3

Which planet has the most similar size and composition to Earth?

• Mercury

• Venus

• Mars

• Jupiter

What is the primary gas in the atmosphere of Mars?

• Oxygen

• Nitrogen

• Carbon dioxide

• Hydrogen

Which planet has the largest volcano in the solar system, Olympus Mons?

• Mercury

• Venus

• Earth

• Mars