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