Earth in Space

What is the diameter of the Earth?

• 7,927 miles

• 12,755 miles

• 24,901 miles

• 40,066 miles

What is the Earth's circumference at the equator?

• 7,927 miles

• 12,755 miles

• 24,901 miles

• 40,066 miles

What percentage of the Earth’s composition is iron?

• 28%

• 35%

• 17%

• 50%

How many square miles of land area does Earth have approximately?

• 57,400,000 square miles

• 148,847,000 square miles

• 139,480,000 square miles

• 361,254,000 square miles

How old is the Earth according to scientists?

• 4.6 million years

• 4.6 billion years

• 460 million years

• 460 billion years

What is the Earth's mantle made of?

• Solid rock

• Molten rock

• Water

• Gas

How long does it take for the Earth to complete one full rotation?

• 12 hours

• 24 hours

• 365 days

• 66,000 miles per hour

At what speed does the Earth orbit the Sun?

• 7,927 miles per hour

• 12,755 miles per hour

• 66,000 miles per hour

• 40,066 miles per hour

What is this planet called?

• Saturn

• Earth

• Sun

• Venus

The Earth's circumference at the _________ is approximately 24,901 miles.