A) loops B) particles C) nucleus D) force
A) nucleus B) solar wind C) particles D) force
A) nucleus B) fluorescent C) particles D) loops
A) solar wind B) fluorescent C) loops D) nucleus
A) loops B) force C) particles D) nucleus
A) fluorescent B) loops C) force D) solar wind.
A) tells how to make something B) took place long ago C) gives information about the solar system D) is written in the first person
A) the sun B) a full moon C) a group of stars D) a flaming ball
A) Comets appeared in the sky suddenly. B) Earthquakes and floods occurred after a comet appeared. C) People did not understand comets. D) Bad things always happened after a comet appeared.
A) a snowball B) a ball of frozen gases C) a star D) a planet
A) astronauts B) dentists C) doctors D) astronomers
A) between the planets B) past the farthest planet C) around the sun D) behind the moon
A) a coma B) gravity C) a planet D) an asteroid
A) fluorescent light bulb B) bulb shooting star C) dirty snowball D) solar wind
A) ice B) rocks C) gas and dust D) fur
A) boulders B) comets C) asteroids D) meteors
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 |