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