MERCURY

What is the position of Mercury relative to the Sun?

• 1st

• 2nd

• 3rd

• 4th

How many moons does Mercury have?

• 0

• 1

• 2

• 3

How long is a day on Mercury (one complete rotation on its axis)?

• 24 hours

• 58 Earth days

• 88 Earth days

• 365 Earth days

How long does Mercury take to orbit the Sun (one year)?

• 24 days

• 88 days

• 365 days

• 687 days

What is the surface temperature on Mercury during the day?

• 100°C

• 430°C

• 300°C

• 600°C

What is the surface temperature on Mercury at night?

• -100°C

• -180°C

• -50°C

• -220°C

Which planet is closest in size to Mercury?

• Earth

• Venus

• Mars

• The Moon

What is Mercury's large core primarily made of?

• Iron

• Nickel

• Carbon

• Silicon

Why is Mercury difficult to observe from Earth?

• It is too small

• It is too far away

• It is too close to the Sun

• It is always obscured by the Moon

Which phenomenon best describes the surface of Mercury?

• Covered by volcanoes

• Covered by ice

• Rocky and has craters

• Made of gas