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Grade 7 · Astronomy & space

Grade 7 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 5 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 after the waning gibbous?
2Sky observationAbout how long does the Moon take to go through all of its phases?
3Sky observationWhat is the main cause of Earth's seasons?
4Sky observationIn the Moon’s cycle of phases, which phase comes right before the waning crescent?
5Solar systemWhich planet is closer to the Sun: Earth or Neptune?
6Solar systemIn a model where 1 AU is 2 cm, how far is an object at 5 AU from the origin?
cm
7Solar systemWhich is a rocky (terrestrial) planet: Jupiter or Venus?
8Solar systemWhich planet is famous for its bright, wide rings?
9Space scienceGravity on the Moon is about one-sixth as strong as on Earth. A lander weighs 192 N on Earth. About how much would it weigh on the Moon?
N
10Space scienceGravity on the Moon is about one-sixth as strong as on Earth. A toolbox weighs 720 N on Earth. About how much would it weigh on the Moon?
N
11Space scienceA toolbox has a mass of 24 kg on Earth. What is its mass on the Moon?
kg
12Space scienceGravity on Mars is about 0.38 times as strong as on Earth. A science instrument weighs 1280 N on Earth. About how much would it weigh on Mars? Round to one decimal place.
N