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