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Sixth Grade Ch4 Flashcards | StudBud

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Which describes the greenhouse effect?

Which describes a planet's speed as it orbits the Sun?

Sixth Grade Ch4

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Review of the Solar System.

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Questions 12

Answers

1
Which describes a planet's speed as it orbits the Sun?
constantly decreases
does not change
increases then decreases
constantly increases
2
Which describes the greenhouse effect?
energy trapped by atmosphere
energy emitted by the Sun
effect of gravity on temperature
reflection of light from a planet
3
Which is true of the dwarf planets?
never have moons
orbit near the sun
more massive than nearby objects
spherically shaped
4
Which two gases make up most of the outer planets?
hydrogen and helium
ammonia and helium
ammonia and hydrogen
methane and hydrogen
5
Which best describes an asteroid?
wet
round
icy
rocky
6
How does Earth differ from other inner planets?
Its surface is covered by large amounts of liquid water.
Its period of revolution is much greater.
Its surface temperature is higher.
Its atmosphere contains large amounts of methane.
7
Which best describes the asteroid belt?
the region where comets originate
large chunks of gas, dust, and ice
millions of small rocky objects
another name for the Oort cloud
8
Which is a bright streak of light in Earth's atmosphere?
comet
meteoroid
meteorite
meteor
9
Which inner planet is the hottest?
Earth
Mars
Mercury
Venus
10
As planets revolve around the Sun, the Sun's gravitational pull keeps them on their orbit.
false
true
11
Which solar system object is the largest?
Neptune
the Sun
Saturn
Jupiter
12
How are the terrestrial planets similar?
densities
rocky surfaces
diameters
periods of rotation