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