A) force B) loops C) nucleus D) particles
A) force B) solar wind C) particles D) nucleus
A) nucleus B) loops C) particles D) fluorescent
A) fluorescent B) loops C) nucleus D) solar wind
A) force B) nucleus C) particles D) loops
A) loops B) fluorescent C) force D) solar wind.
A) tells how to make something B) gives information about the solar system C) took place long ago D) is written in the first person
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 star B) a planet C) a snowball D) a ball of frozen gases
A) dentists B) astronauts C) astronomers D) doctors
A) between the planets B) behind the moon C) around the sun D) past the farthest planet
A) an asteroid B) a coma C) gravity D) a planet
A) bulb shooting star B) fluorescent light bulb C) solar wind D) dirty snowball
A) ice B) fur C) rocks D) gas and dust
A) meteors B) boulders C) comets D) asteroids
A) periods B) years C) loops D) ellipses
A) when the next solar system will appear in the universe B) traveling comets that can change our lives C) what comets are made of and how they move and change D) how to become an astronomer and learn to write books. |