Mercury

Question 1

Why is the atmosphere of Mercury so thin?

Answer 1

There is too little gravity to hold it down

Question 2

How long does it take Mercury to completely orbit the sun?

Answer 2

88 Days

Question 3

Mercury is the______ planet in our solar system.

Answer 3

Smallest

Question 4

Mercury’s orbit is…

Answer 4

More elliptical than Earth’s

Question 5

What is a scarp?

Answer 5

Cliffs on the surface of Mercury

Question 6

Which planet is also as geologically dominated by impact craters as the Moon?

Answer 6

Mercury

Question 7

What is the closest planet to the sun in our solar system?

Answer 7

Mercury

Question 8

Mercury has a large, iron-rich core.

Answer 8

True

Question 9

Other than Earth, which is the only terrestrial planet with a significant magnetic field today?

Answer 9

Mercury

Question 10

Mercury has __% the gravity of Earth.

Answer 10

38

Question 11

How long is a day (noon to noon) on Mercury?

Answer 11

30 Earth days

Question 12

Mercury is the second densest planet following:

Answer 12

Earth

Question 13

What are scarps on Mercury?

Answer 13

Cliffs caused by the collapse of Mercury’s crust

Question 14

Mercury is a terrestrial planet. What is a terrestrial planet primarily composed of?

Answer 14

Rock

Question 15

How many astronomical units (AU) is Mercury from the Sun?

Answer 15

0.38 AU

Question 16

Why does Mercury have scars on its surface?

Answer 16

Crust material compressed in on the core below as it cooled.

Question 17

Which statement is true?

Answer 17

Mercury has shorter years, longer days

Question 18

Because of its inability to “self-heal” the surface of Mercury is covered in:

Answer 18

Craters

Question 19

Mercury’s surface is covered in craters. How were these craters formed?

Answer 19

Comets/asteroids

Question 20

What is Mercury’s highest surface temperature?

Answer 20

840 F