1) Mercury, Venus, Earth, and Mars are ALL... a) gas giants b) about the same size c) terrestrial planets 2) Which of these plants are gas giants? (Choose all correct answers.) a) Neptune b) Saturn c) Earth d) Uranus e) Jupiter f) Venus 3) _ is the center of our solar system. a) the moon b) the sun c) the Earth d) Pluto 4) TRUE or FALSE? The sun is larger that all of the planets. a) true b) false 5) TRUE or FALSE? Mercury is the smallest terrestrial planet? a) true b) false 6) Which lists the planets in order from SMALLEST to LARGEST? a) Mars, Mercury, Earth, Venus, Saturn, Uranus, Jupiter, Neptune b) Jupiter, Saturn, Uranus, Neptune, Earth, Mars, Mercury, Venus c) Mercury, Mars, Venus, Earth, Neptune, Uranus, Saturn, Jupiter 7) Which picture shows the planets in order from SMALLEST to LARGEST? a) b) c) 8) Which statement is TRUE? a) Saturn and Earth are both terrestrial planets. b) Saturn and Neptune are both gas giants. c) Mars and Jupiter are both gas giants. 9) Which planet is known as the largest planet in our solar system and a gas giant? a) Jupiter b) Uranus c) Venus 10) Which is true about the order of the planets as shown in the picture? a) Each planet is larger than the one before. b) Each planet has more moons than the one before. c) Each planet is farther from the sun than the one before. 11) Which picture shows the planets in order by distance from the sun? a) b) c) 12) Why do we have a day that is 24 hours long? a) It takes 24 hours for Earth to revolve around the sun. b) It takes 24 hours for Earth to rotate one time. c) It takes 24 hours for the moon to rotate once. 13) It takes 24 hours for Earth to rotate one time. What would happen if Earth rotated faster? a) Days would be longer. b) Days would be shorter. c) Seasons would be shorter. 14) Which is a model of Earth's revolution? a) b) c) 15) This is a model of the solar system. Mercury is the smallest rocky planet. Which numbered planet is Mercury, according to its distance from the sun? a) 4 b) 3 c) 2 d) 1 16) Pick ALL statements that describe the inner planets. a) gaseous b) rocky c) many moons d) few moons e) short revolutions f) long revolutions 17) Pick ALL statements that describe the outer planets. a) gaseous b) rocky c) many moons d) few moons e) short revolutions f) long revolutions 18) The picture shows the sun and the planets in the solar system. What is the picture modeling? a) The order of the planets from the sun. b) What the planets and sun are made of. c) The size relationship between the planets and the sun.

Solar System (part 2) Test Review

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