Which of the following planets are all made up of gas? When a planets orbit around the Sun looks like an oval, it s called a(n)

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1 When a planets orbit around the Sun looks like an oval, it s called a(n) - ellipse - circle - axis - rotation Which of the following planets are all made up of gas? - Venus, Mars, Saturn and Pluto - Jupiter, Saturn, Uranus, and Neptune - Jupiter, Saturn, Neptune, and Pluto - Mars, Jupiter, Saturn, and Uranus 1 2 What is the closest planet to the Sun? - Mercury - Earth - Mars - Venus 3 4 Beyond what number is the Kuiper belt found?

2 What is the largest Planet in the Solar System? - Venus - Pluto - Saturn - Jupiter What makes Uranus look blue-green? -The rocks it is made out of -The clouds that surround it -The Sun because it is so far away -The methane mixed with helium and hydrogen 5 6 Which of the following describes the terrestrial planets? -hot, dry, and dense -small, dense, and rocky -large, light, and gaseous -small, light, and solid 7 8 Which planet is hottest? Planet Distance From Sun Earth million Km Jupiter million Km Mars million Km Mercury 57.9 million Km Venus million Km Earth million Km

3 Which planet is known as The Red Planet? Jupiter Saturn Pluto Mars What is one way that gas giants differ from the terrestrial planets? 9 10 Which statement is NOT correct? A comet travels more quickly in its orbit when it is closer to the Sun. -The Earth orbits the Sun -The Moon orbits the Earth -The Sun orbits the Milky Way -The Moon provides the energy for our Solar System Why?

4 Number of measured asteroids each year Why does a SOLAR eclipse occur? -The Sun goes behind another planet -The Moon comes between the Sun and the Earth -The Earth faces away from the Sun -The Sun goes out for a while What inference can you make from this data? What is the arrow pointing to in this diagram? What is the INDEPENDENT VARIABLE in the investigation that created this data? (From

5 The name of the space mission that carried NASA astronauts to the Moon in 1969 was? Apollo 13 Challenger Apollo 11 Apollo 2 What is the DEPENDENT VARIABLE in the investigation that created this data? What happens to the tail of a comet as it gets closer to the sun? A and C point to what parts of a comet? 19 20

6 The majority of Asteroids are found in a belt located between what two planets? -Earth and Mars -Mars and Venus -Mars and Jupiter -Jupiter and Saturn Which of the following statements best explains why the comet travels more quickly when it is closer to the Sun? -The mass of the comet increases -The temperature of the comet increases -The frictional force on the comet increases -The gravitational pull on the comet increases A day on Jupiter takes about 9 hours, 56 minutes. Which fact would best explain this short day? -Jupiter is less dense than Earth - Jupiter is much farther from the Sun than Earth - Jupiter rotates more rapidly than Earth - Jupiter s orbit has greater eccentricity than Earth s Which of the following correctly lists the objects in space from smallest to largest? -star, galaxy, solar system, universe -star, solar system, galaxy, universe -star, solar system, universe, galaxy -star, universe, solar system, galaxy

7 What keeps the Earth in its orbit? -The Sun s speed rotating -The Sun s gravitational pull -The Earth s spin direction -The Earth s location between other planets The cloud of gas and dust that formed our solar system is the? According to the data below, which of these planets takes the longest time to revolve around the Sun? Planet Data Mass (kg) Distance from Sun (km) Saturn 568x x10 6 Jupiter 1899 x x10 6 Uranus 86.8 x x10 6 Neptune 102 x x According to the data below, which of these planets probably has the highest temperature? Planet Data Mass (kg) Distance from Sun (km) Saturn 568x x10 6 Jupiter 1899 x x10 6 Uranus 86.8 x x10 6 Neptune 102 x x10 6

8 A year on Jupiter is 4,333 days long. A year on Mercury is 88 days long. Why do planets have different length years? -A year is longer on larger planets. -Each planet has its own orbital period. -Some planets are larger than other planets. -Planets exert a gravitational force on other planets Natural or artificial bodies that orbit larger celestial bodies such as planets are called? Small bodies of ice and cosmic dust are called? Which planets have rings? 31 32

9 Which of the following keeps the planets in our solar system in orbit around the Sun? -Atmospheric pressure -Gravitational force -Electromagnetic energy -Thermal energy The glowing trails that result when Meteoroids burn up in Earth s atmosphere are called? Which of the following is a body that reaches Earth s surface? -A meteorite -A meteoroid -An asteroid -A comet Many scientists think that comets originate in?

10 On which planet is Olympus Mons, the highest volcano in the Solar System, located? Which planet has the most moons? What is the comet belt outside of Pluto's orbit called? What are the terrestrial planets? 39 40

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