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