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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 4 of 5

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

1Sky observationWhy can we see the Moon shining?
2Sky observationA diagram divides one full rotation into 24 equal parts. How many degrees are in each part?
degrees
3Sky observationIn the Moon’s cycle of phases, which phase comes right before the waning gibbous?
4Sky observationWhy does Polaris (the North Star) seem to stay almost still in the night sky?
5Solar systemWhich is a rocky (terrestrial) planet: Venus or Jupiter?
6Solar systemWhich planet is closer to the Sun: Neptune or Saturn?
7Solar systemWhat does a light-year measure?
8Solar systemWhich planet is often called the Red Planet?
9Space scienceGravity on the Moon is about one-sixth as strong as on Earth. A lander weighs 762 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 670 N on Earth. About how much would it weigh on Mars? Round to one decimal place.
N
11Space scienceA toolbox has a mass of 55 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 lander weighs 1480 N on Earth. About how much would it weigh on Mars? Round to one decimal place.
N