1.
shadows caused by Earth's _____________
2.
what type of orbit do the planets use when they orbit the sun?
3.
what are terrestrial planets made out of?
4.
what are gas planets made out of?
5.
___________ are objects that enter Earth's atmosphere.
6.
_________ are mixtures of ice and dust that have highly elliptical orbits.
7.
when meteoroids burn up they are called _________.
8.
The earth completes one rotation every 24___________.
9.
________ were once used for navigation.
10.
Furthest planet from the sun.
11.
closest planet to the sun.
12.
________, Jupiter, Saturn, and Neptune are the four gas planets.
13.
_______, Mercury, Venus, and Mars are the four terrestrial planets.
