Solar System Flashcards
(7 cards)
0
Q
Planet
A
An object that’s round, orbits the sun and has cleared out the region of the solar system along its orbit
1
Q
Solar system
A
The system consisting if the sun and the planets and other objects that revolve around it
2
Q
Planetesimal
A
One of the small asteroid like bodies that formed the building blocks of the planet
4
Q
Dwarf planet
A
An object that orbits the sun and has enough gravity to be spherical, but has not cleared the area of orbit
5
Q
Comets
A
loose balls of ice and rock that orbits the sun, typically in a long narrow orbit
7
Q
Asteroids
A
Small, mostly rocky bodies that orbit the sun
11
Q
Astronomical unit
A
A unit of distance equal to the average distance between earth and the sun, about 150 million kilometers
