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