model 4 grade4 February exams on concept 1 and 2

1. The distance between Earth and Mars is about ………

3 points

54 million km

54 km

540 million cm

540 cm

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2. Some electric devices need …………energy to be recharged

3 points

electrical

thermal

potential

sound

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3. Spacecraft takes several …….. to reach Mars planet

3 points

days

years

months

minutes

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4. Wood is considered as..........

3 points

biofuel.

fossil fuel

liquid fuel

gaseous fuel

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5. Ancient people use ……… as a form of fuel before discovering gasoline.

3 points

electricity

water

wind

wood

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