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