Unit 2 Test Info
0.0(0)
Studied by 1 person
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt PlayCard Sorting
1/31
Last updated 9:51 PM on 10/6/22
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai | Chat |
|---|
No analytics yet
Send a link to your students to track their progress
32 Terms
1
New cards
What are the potential reasons that the dinosaurs went extinct?
crushed by overpressure
incinerated by fireball
died in nuclear winter
starved as food chain collapsed
drowned in global tsunami
shifted sex ratio
incinerated by fireball
died in nuclear winter
starved as food chain collapsed
drowned in global tsunami
shifted sex ratio
2
New cards
How often do extinction level events happen?
every 100 million years
3
New cards
What is iridium?
Iridium is a chemical element that is very rare on earth but very common in space objects
4
New cards
Why doesn't earth look like the moon?
earth has an atmosphere
earth has liquid water
geological process (land)
biological process (water)
erosion
earth has liquid water
geological process (land)
biological process (water)
erosion
5
New cards
How old is the earth?
4.6 billion years old
6
New cards
Simple crater
small object that lacks central peak
7
New cards
complex crater
large object that has a central peak
8
New cards
Impact breccias
A rock consisting of various fragments cemented together by the impact of a meteoroid
9
New cards
Highlands
bright, rough, and heavily impacted
10
New cards
a dirty snowball
comet
11
New cards
rocky composition
asteroid
12
New cards
smaller of the two (comet or asteroid)
comet
13
New cards
larger of the two (comet or asteroid)
asteroid
14
New cards
Which one (comet/asteroid) contains iridium?
asteroid
15
New cards
Which one (comet/asteroid) is found in the main belt?
asteroid
16
New cards
Which one (comet/asteroid) hit Tunguska?
asteroid
17
New cards
Which one (comet/asteroid) hit Chicxulub?
asteroid
18
New cards
Which one (comet/asteroid) has an impact on planets?
both
19
New cards
Which one (comet/asteroid) has a tail?
comet
20
New cards
Which one (comet/asteroid) can be metallic?
asteroid
21
New cards
Which one (comet/asteroid) is made up of primitive materials?
both
22
New cards
Which one (comet/asteroid) is found in the Oort cloud?
comet
23
New cards
Which one (comet/asteroid) is found in the Kuiper belt?
comet
24
New cards
Which one (comet/asteroid) has a circular orbit?
asteroid
25
New cards
Which one (comet/asteroid) has an elliptical orbit?
comet
26
New cards
Which one (comet/asteroid) has a long/short period
comet
27
New cards
Which one (comet/asteroid) causes mass hysteria?
asteroid
28
New cards
Which one (comet/asteroid) is the plane of the solar system?
asteroid
29
New cards
Which one (comet/asteroid) caused mass extinction?
asteroid
30
New cards
Which one (comet/asteroid) was a NASA mission?
both
31
New cards
general term for falling object
meteor
32
New cards
interplanetary body of rocky/metallic composition
asteroid