Term
| A main reason for changing Pluto's status from planet to dwarf panet is: |
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Definition
| Pluto has not cleared the neighborhood around its orbit. |
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Term
| The closer a planet is to the Sun, the _________________ it moves in its orbit around the Sun. |
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Definition
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Term
| The planets of the solar system all move in the _________ direction as they orbit the Sun. |
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Definition
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Term
| Jupiter's moon Europa is especially interesting to scientists because: |
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Definition
| It may have oceans of liquid water. |
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Term
The Sun and its family of planets formed at the same time from the same cloud of gas and dust.
True or False |
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Definition
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Term
Place these solar system objects in the correct order according to temperature from hottest to coldest.
Terrestrial (rocky planets)
Sun
Pluto
Jovian (gas giant) planets |
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Definition
Sun
Terrestrial (rocky) planets
Jovian (gas giant) planets
Pluto
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Term
| Approximately how long does it take Saturn to complete one orbit around the Sun? |
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Definition
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Term
Besides Pluto, the other two newly classified dwarf planets are:
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Definition
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Term
Which of the following planets has the greatest number of known moons?
Mercury
Venus
Saturn
Neptune |
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Definition
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Term
| Phobos and Deimos are two tiny moons that belong to which planet? |
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Definition
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Term
| Pluto has been reclassified as a member of which of these categories? |
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Definition
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Term
| One of Saturn's moons is called: |
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Definition
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Term
| What is a noteworthy feature of the planet Mars? |
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Definition
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Term
Which of the following planets has almost no atmosphere?
Mercury
Venus
Mars
Earth |
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Definition
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Term
Which of the following planets is the largest?
Mercury
Earth
Mars
Venus |
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Definition
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Term
Which of the following planets has the smallest orbit?
Mercury
Venus
Earth
Mars |
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Definition
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Term
Which of the following planets has lots of liquid water on the surface?
Mars
Neptune
Earth
Mercury |
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Definition
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Term
| What do the outer planets (Jupiter, Saturn, Nepture and Uranus) all have in common? |
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Definition
| They all have thick atmospheres |
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Term
| What is a noteworthy feature of the planet Jupiter? |
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Definition
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Term
| What is the shape of the orbit of our planets? |
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Definition
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Term
| The farther a planet is from the Sun, the __________________ it moves. |
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Definition
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Term
| These four moons of Jupiter; (Ganymede, Callisto, Io and Europa) are know as Galilean moons because they were discovered by? |
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Definition
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