|
|
|
4
|
young planet formed out of the protoplanetary disc
|
|
6
|
separation of iron and lighter elements in a protoplanet
|
|
7
|
cold interstellar gas cloud
|
|
8
|
______________is the main factor that determines what type of planet forms
|
|
9
|
the process by which small ‘seeds’ grew into planets by ice crystals and dust sticking together
|
|
11
|
small bodies of accreted gas and dust thought to have orbited the Sun during the formation of the planets
|
|
13
|
rocky planets with high density and small mass
|
|
14
|
Our moon formed from a __________ of another object with Earth
|
|
17
|
The __________ that have been discovered are surprisingly, Jovian worlds in terrestrial orbits
|
|
|
|
|
|
|
1
|
the distribution of iron, silicate and ice according to temperature within the nebula is called _______
|
|
2
|
thick bubble of icy debris that surrounds our solar system
|
|
3
|
_________is a captured moon of Neptune
|
|
5
|
exerted upon any surface exposed to electromagnetic radiation
|
|
10
|
asteroids are primarily ___________
|
|
12
|
stream of energized, charged particles, primarily electrons and protons, flowing outward from the Sun
|
|
15
|
age of the solar system is 4.6 _____________years
|
|
16
|
gaseous planets with low density and large mass
|
|
|
|
