Other Celestial Bodies

Multiple Choice

What is the main component of a comet's head?

• Solid inner core (nucleus)

• Gas cloud

• Rocky shell

• Liquid water

Multiple Choice

What causes the tail of a comet to form?

• Gases streaming away from the sun

• Gravity from nearby planets

• Collisions with asteroids

• The comet's rotation

Multiple Choice

From where do most comets originate?

• Kuiper belt and Oort cloud

• Asteroid belt and Mars

• Jupiter and Saturn

• Earth's atmosphere

Multiple Choice

Which of the following statements about asteroids is correct?

• Most asteroids orbit between Mars and Jupiter.

• All asteroids are larger than the moon.

• Asteroids are made mostly of ice.

• Asteroids always have tails like comets.

Multiple Select

Select all correct statements about Ceres, the largest known asteroid.

• It is a quarter the size of the moon.

• It is 476 km in diameter.

• It is larger than Earth.

• It is the largest known asteroid.

Open Ended

Explain the difference between a meteor, a meteoroid, and a meteorite.

Multiple Choice

What is the bright object with a glowing tail seen in the night sky in this image?

• A comet

• A shooting star

• A planet

• A satellite

Multiple Choice

What is the main difference between the nucleus and the coma of a comet?

• The nucleus is solid and the coma is fuzzy

• The nucleus is made of gas and the coma is made of rock

• The nucleus is the tail and the coma is the head

• The nucleus is larger than the coma