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Grade 8 · Astronomy & space

Grade 8 Astronomy & space diagnostic

12 questions on solar system, space science and sky observation. Answer what you can, then check your answers to see which topics are secure and what to practise next.

12 questions3 topicsAbout 15 minutesSet 2 of 5

Skip a question if you do not know the answer. It is better than guessing, because it shows what to practise.

1Sky observationIn the Moon’s cycle of phases, which phase comes right before the third quarter?
2Sky observationWhy can’t we see stars in the daytime sky?
3Sky observationWhat is the main cause of Earth's seasons?
4Sky observationIn the Moon’s cycle of phases, which phase comes right before the new moon?
5Solar systemWhich is a giant planet: Earth or Uranus?
6Solar systemWhich planet is farther from the Sun: Earth or Jupiter?
7Solar systemWhich planet is farthest from the Sun?
8Solar systemWhat kind of astronomical object is the Sun?
9Space scienceGravity on the Moon is about one-sixth as strong as on Earth. A science instrument weighs 666 N on Earth. About how much would it weigh on the Moon?
N
10Space scienceGravity on Mars is about 0.38 times as strong as on Earth. A rover weighs 350 N on Earth. About how much would it weigh on Mars? Round to one decimal place.
N
11Space scienceA toolbox has a mass of 146 kg on Earth. What is its mass on the Moon?
kg
12Space scienceGravity on the Moon is about one-sixth as strong as on Earth. A toolbox weighs 90 N on Earth. About how much would it weigh on the Moon?
N