Discuss each question with your team. Be prepared to explain the reasoning behind your team's answers after the quiz.
- What is a comet made of?
- Rocks
- Ice cream
- Mostly Water ice with some dust
- Titanium dioxide
- What is the meaning of the term perihelion?
- Farthest point in orbit from the Earth
- Nearest point in orbit to the Sun
- Average distance to the Moon
- Sun’s period around the Galaxy
- When was Halley’s comet last visible?
- Last night (it’s always visible)
- 1986
- 1896
- Galileo recorded Halley’s comet last in 1610
- When will Halley’s comet be visible again?
- 2061
- tomorrow (always visible)
- next September
- never - Halley’s comet was subsumed by the Sun last year
- Roughly how many known comets are there?
- None
- 17
- 162
- 5,000