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Solar System Review
Astronomy
Question | Answer |
---|---|
two things that cause the seasons are? | earth's axis and revolution |
why do we see different phases of the moon? | the sun lights up only certain parts at certain moments |
what causes tides? | the gravitational attraction between the sun and moon |
what is rotation? | the spinning of earth on its axis |
how long does it take for earth to rotate once? | 24 hours |
what does the moon revolve around | the earth |
how long does it take for the moon to revolve around the earth? | 27.3 |
what are constellations? | groups of stars that form patterns in the sky |
what is the universe? | made up of billions of galaxies |
what is the solar system? | made up of eight planets and other objects that orbit the sun |
what is a galaxy? | a group of stars, gas, and dust held together by gravity |
what galaxy do we live in? | milky way |
what type of galaxy do we live in? | spiral |
what is an astronomical unit? | 150 million km |
what is a revolution? | the movement of earth around the sun |
how long does it take for earth to revolve once around the sun? | one year |
what is a solar eclipse? | the moon moves directly between the sun and earth |
what is a super giant? | the remains of an exploding star until it collapses into a black hole |
which planet looks blue and is made of methane gas? | neptune |
which planet looks red because rocks on its surface get rusty? | mars |
which planet is the largest and has the great red spot? | jupiter |
which planet has a moon named triton? | neptune |
which planet has a moon named titan? | satern |
which planet has a surface temperature allowing water to be a solid, liquid, and gas? | earth |
which planet has an atmosphere of thick clouds? | venus |
which planet is known for its dazzling rings? | satern |