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A. All the planets travel around a sun, which is at the center. B. All the planets and the sun travel around Earth. C. The Earth and sun travel around all of the other planets. D. All of the planets travel around Earth and the sun. In our planetary system -- Which illustration best represents the sizes of theinner planets in order (moving away from the sun)? G. F. H. J. This planet has the quickest trip around the sun because it is the closest planet to the sun. A. Mars B. Venus C. Mercury D. Earth ____ is known for being the hottest planet. F. Earth G. Venus H. Mercury J. Mars ____ is like Earth because it has seasons, and it has ice caps at its North and South Poles. A. Mercury B. Venus C. Uranus D. Mars How is Venus similar to Earth? F. It is about the same size as Earth. G. It is about the same temperature as Earth. H. It has oceans of liquid water like Earth. J. It is not like Earth in any way. ____ is the third closest planet to the sun. A. Mars B. Mercury C. Earth D. Venus Another name for the inner planets is the "rocky planets" or the ____. G. terrestrial planets F. gas giants H. liquid planets J. moonless planets The only planet known for having oceans and lakesof liquid water is ____. A. Mercury B. Venus C. Mars D. Earth Because it has very litte gravity and is closest to the sun, this planet has little to no atmosphere. Also, it has so many craters it looks like the moon! G. Mercury F. Mars H. Earth J. Venus Which of these would you not find in our solar system? A. planets B. moons C. galaxies D. asteroids This planet is known as the red planet. H. Earth F. Mercury G. Venus J. Mars Venus is the hottest planet because -- B. it has no moons. A. its thick clouds trap the sun's heat. C. it is the planet closest to the sun. D. it is the largest planet. Why are the inner planets called the "inner" planets? G. Because they are inside the Milky Way Galaxy. F. Because they are inside the solar system. H. Because they all have an inner core. J. Because they are inside the asteroid belt. |