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- 1. Multiple Choice
What two properties keep the planets in their orbits?
rotation and revolution
gravity and inertia
gravity and magnetism
inertia and magnetism
- 2. Multiple Choice
Stars with masses greater than ten times the mass of the Sun can form...
constellations
planets
supernovas
white dwarfs
- 3. Multiple Choice
How are asteroids different from meteoroids?
meteoroids have been studied by space probes and asteroids have not.
Asteroids orbit the Sun, but meteroids do not.
asteroids are small balls of ice, while meteoroids are rocky or metallic objects.
Most asteroids move between the orbits of Mars and Jupiter, while meteoroids throughout the solar system.
- 4. Fill in the Blank
List the Planets in order from the Sun outwards.
- 5. Fill in the Blank
How are objects that orbit the Sun classified differently from stars that do not orbit the Sun?
- 6. Fill in the Blank
What are some common characteristics about the inner planets?
- 7. Multiple Choice
How are constellations alike?
patterns of stars
cluster of stars
number of stars vary
positions vary from Earth
- 8. Multiple Choice
How are constellations different?
number of stars vary
pattern of stars
positions vary from Earth
clusters of stars
- 9. Multiple Choice
How is the Sun like other stars?
it is a protostar
it is a heat energy
it is an average size star
it is a red giant
- 10. Multiple Choice
A star begins as a ball of dust particles and gases pulled together by
heat energy
protostars
inertia
gravity
- 11. Fill in the Blank
A _________ is when the object is in space.
- 12. Fill in the Blank
A __________ is when the object enters Earth's atmosphere.
- 13. Fill in the Blank
A __________ is when the object strikes Earth's surface.
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