1) How many planets are in our solar system? a) 7 b) 9 c) 6 d) 8 2) How many inner planets are there? a) 4 b) 5 c) 3 d) 3 3) How many outer planets are there? a) 3 b) 5 c) 6 d) 4 4) List the inner planets in order. (from closest to the sun to farthest) a) earth, mars, mercury, venus b) mars, venus, earth, mercury c) mercury, venus, earth, mars d) venus, earth, mercury, mars 5) List the outer planets in order. (from closest to the sun to farthest) a) neptune, saturn, uranus, jupiter b) uranus, Neptune, Saturn, Jupiter c) saturn, Jupiter, neptune, Uranus d) Jupiter, saturn, uranus, neptune 6) which inner planet is the largest? a) earth b) mercury c) venus d) mars 7) which outer planet is the largest? a) saturn b) jupiter c) uranus d) neptune 8) what planet is known for its rings a) uranus b) saturn c) earth d) venus 9) which planet has the only current known life a) jupiter b) neptune c) earth d) mars 10) which planet is known as the red planet? a) mars b) jupiter c) mercury d) uranus 11) which planet has the thickest atmosphere? a) mercury b) saturn c) jupiter d) venus 12) which planet has the most moons? a) mars b) jupiter c) neptune d) uranus 13) which planet is farthest from the sun a) uranus b) neptune c) jupiter d) saturn 14) which planet is closest to the sun? a) mercury b) mars c) earth d) venus 15) which planet is the hottest a) venus b) saturn c) mercury d) mars 16) which planet is the coldest a) neptune b) earth c) uranus d) jupiter 17) how many known dwarf planets are there? a) 4 b) 3 c) 5 d) 6 18) which moon is the biggest a) titan b) earth's moon c) Europa d) Ganymede 19) the outer planets are made out of a) rocky material b) water c) gas d) wood 20) the inner planets are made up of a) gas b) rocky material c) water d) wood

Solar System 7th Grade Science

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