SCIENCE ASSESSMENT 1.8-Comets

1. What are comets primarily made of?

• a) Metals
• b) Liquid water
• c) Ice, dust, and rock
• d) Gaseous plasma

2. What is the nucleus of a comet?

• a) The comet’s tail
• b) The solid core made of ice, dust, and rock
• c) The surrounding cloud of gas
• d) The outermost layer of the comet

3. What happens to a comet when it gets close to the sun?

• a) It turns into a planet
• b) It evaporates completely
• c) Its ice turns into gas, forming a coma and a tail
• d) It breaks into smaller pieces

4. What is the coma of a comet?

• a) The comet's nucleus
• b) The solid core
• c) The fuzzy outer layer formed by gas and dust
• d) The tail of the comet

5. What causes the tail of a comet to form?

• a) Gravitational pull from the Earth
• b) Heat from the sun
• c) Interaction with the atmosphere
• d) A collision with another object

6.How long can a comet’s tail be?

• a) 10 kilometers
• b) 1,000 kilometers
• c) 100 million kilometers
• d) 10 million kilometers

7. Which direction does a comet’s tail point?

• a) Towards the sun
• b) Towards the Earth
• c) Away from the sun
• d) In the direction of the comet’s orbit

8. What are the two main types of comet tails?

• a) Ice and fire
• b) Gas and dust
• c) Plasma and liquid
• d) Rock and metal

9. Where are most comets found?

• a) In the asteroid belt
• b) Near the sun
• c) In the Kuiper Belt and Oort Cloud
• d) Between Earth and Mars

10. What is the Kuiper Belt?

• a) A region of space between Mars and Jupiter
• b) A spherical region surrounding the solar system
• c) A doughnut-shaped region beyond Neptune’s orbit
• d) A region within the asteroid belt