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2
3
4
5
100
One whole spin of an object on its axis
rotation
100
any of the four planets in our solar system beyond Mars
outer planet
100
Any of the four closest planets to the sun
inner planet
100
a large, round object that revolves around a star and has cleared the region around its orbit
planet
100
a group of stars that forms a pattern
constellation
200
an imaginary line around which an object spins
axis
200
one full orbit around the sun
revolution
200
a natural object that revolves around a planet
moon
200
What is the correct order of the planets from the sun?
Mercury, Venus, Earth, Mars
200
Earth and the other planets closest to the sun are made mostly of.....
rock
300
a rocky mass up to several hundred kilometers wide that revolves around the sun
asteroid
300
the path an object takes as it revolves around a star, planet, or moon
orbit
300
What type of object is abundant (has a lot) between the orbits of Mars and Jupiter?
asteroid
300
a large, round object that revolves around the sun but has not cleared the region around its orbit
dwarf planet
300
A student says that she saw a shower of shooting stars in the sky last night. Explain what she probably really saw.
She probably saw a meteor shower. When loose pieces of comets collide with Earth's atmosphere they cause a meteor shower. A meteor gets so hot when it shoots through the air that it glows as a streak of light. These streaks of light are what she saw.
400
a spacecraft that gathers data without a crew
space probe
400
How does Earth's revolution around the sun cause seasons?
The amount of sunlight an area receives determines its weather. Because of Earth's tilt, as Earth revolves around the sun, different parts of Earth receive more or less sunlight. When the parts of Earth receive less sunlight, they have winter. Then they receive more sunlight, it is summer.
400
Dark spots that move on the face of the sun
sun spots
400
an explosive eruption of waves and particles into space
solar flare
400
What do Jupiter, Saturn, Uranus, and Neptune have in common? Give 2 examples
They are all gaseous planets
500
a frozen mass of different types of ice and dust orbiting the sun
comet
500
What is true about planets and asteroids?
They revolve around the sun
500
Which planet is most like Earth?
Mars
500
Name the three layers of the sun's atmosphere
innermost layer-photosphere layer above-chromosphere outermost layer-corona
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