module 9-solar system Flashcards
1
Q
nuclear fusion
A
happens when hydrogen and other small nuclei fuse together to form larger nuclei, releasing large amounts of energy in the process
2
Q
inner planets
A
mercury, Venus, earth, and mars
3
Q
outer plannets
A
Jupiter, saturn, uranus, and neptune
4
Q
axis of rotation
A
earth rotating around an imaginary line
