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Solar System
ch 3, lesson 2 - Sheehan
Question | Answer |
---|---|
Object that orbits the sun, is spherical, but has not cleared the area of its orbit. | Dwarf planet |
used to measure distances within the solar system | Astronomical unit |
The sun, the planets, their moons, and a variety of smaller objects | Solar system |
small body that combined with like bodies to form all the other objects in our solar system | Planetesimal |
object that orbits the sun, is round, and has cleared the area of its orbit | Planet |
When do scientists think the Solar system formed? | 4.6 billion years ago |
What consists of the sun, eight planets and their moons, and several kinds of smaller objects? | The solar system |
The solar system formed from what? | a giant cloud of gas and dust |
What are small asteroid-like bodies that became the building blocks for the planets | planetesimals |
Name the planets in order (My Very Excited Mother Just Served Us Noodles ) | Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune |