A) when the next solar system will appear in the universe B) what comets are made of and how they move and change C) how to become an astronomer and learn to write books. D) traveling comets that can change our lives
A) tells how to make something B) is written in the first person C) took place long ago D) gives information about the solar system
A) a full moon B) a group of stars C) a flaming ball D) the sun
A) Earthquakes and floods occurred after a comet appeared. B) People did not understand comets. C) Comets appeared in the sky suddenly. D) Bad things always happened after a comet appeared.
A) shooting star B) fluorescent light bulb C) dirty snowball D) solar wind
A) astronauts B) doctors C) dentists D) astronomers
A) between the planets B) around the sun C) behind the moon D) past the farthest planet
A) a coma B) an asteroid C) a planet D) gravity
A) boulders B) meteors C) asteroids D) comets
A) a large rock B) chunks of ice C) a star D) a ball of frozen gases
A) ice B) rocks C) dust D) gas and dust
A) periods B) loops C) ellipses D) years
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