WORKSHEET NO.1
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Please mark your choice with
an X
| Rocket engines
a.push a spacecraft along b.travel around the sun
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| A space shuttle
a.carries astronauts b.is a shooting star |
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| Gravity is
a. a group of stars b. a force that attracts
objects to each other
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| A galaxy is
a. a group of stars, dust and gas. b. a dark spot on
the sun
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