5. Mercury Facts

What is the diameter of Mercury?

• 3031.9 miles

• 960 miles

• 6.2 miles

• 55 miles

How long does it take for Mercury to complete one revolution around the sun?

• 88 days

• 365 days

• 59 days

• 4 billion years

What is the composition of Mercury's core?

• Iron

• Mantle

• Crust

• Tectonic plates

What is the temperature range on Mercury?

• From -300 to 800 degrees Fahrenheit

• From -300 to 0 degrees Fahrenheit

• From 0 to 800 degrees Fahrenheit

• From -800 to 300 degrees Fahrenheit

What is the name of the largest crater on Mercury?

• Caloris basin

• Jupiter crater

• Marina 10 crater

• Messenger crater

What is the name of the first spacecraft sent to Mercury's surface?

• Marina 10

• Messenger

• Voyager 1

• Apollo 11

What is the name of the Roman god that Mercury was named after?

• Mercurius

• Jupiter

• Mars

• Venus

What is the main characteristic of Mercury's atmosphere?

• Thin layer of exosphere

• Thick layer of ozone

• No atmosphere

• Abundant oxygen