Part 4b Flashcards
(10 cards)
1
Q
usually burns up when it enters Earth’s atmosphere
A
Meteoroid
2
Q
a light phenomenon or a streak of light that occurs when a meteoroid burns up
A
meteor
3
Q
when a fragment from the meteoroid survives and makes it to the ground
A
meteorite
4
Q
“falling star”
A
meteor
5
Q
types of meteorites
A
- stony
- stony-iron
- iron
6
Q
- most common
- 75-90% silicon based
- 10-25% nickel-iron alloy
- iron sulfide
A
Stony Meteorites
7
Q
- silicates
2. nickel-iron alloy
A
Stony-iron Meteorites
8
Q
- cores of large asteroids
- nickel-iron alloy
- primary component of earth’s core
A
Iron Meteorites
9
Q
IRON METEORITE hits @ Arizona desert
A
Barringer’s Crater
10
Q
it is formed on the ground where a comet, asteroid or their fragments hit Earth’s surface
A
impact crater
