Unit I

Question 1

Cork concept

Answer 1

High density things want to sink , low density things want to float

Question 2

Super ball concept

Answer 2

T= average molecular velocity; high T= fast; low T= slow

Question 3

Glass blower concept

Answer 3

Cold things want to snap, hot things want to bend

Question 4

Fine grained, oceanic litho sphere, low silicon , high iron , dark

Answer 4

Basalt

Question 5

Coarse grained, continental lithosphere,high silicon, low iron, light colored

Question 6

4.6 billion years ago

Answer 6

Start of Precambrian era

Question 7

541 million years ago

Answer 7

Start of Paleozoic era

Question 8

252 million years ago

Answer 8

Start of Mesozoic era

Question 9

66 million years ago

Answer 9

Start of Cenozoic era

Question 10

The “fingerprint” for the element

Answer 10

The number of protons in the nucleus (atomic number)

Question 11

buried erosional surface at an angle
Suggests a mountain range has formed, eroded, and then buried

Answer 11

Angular unconformity

Question 12

Big pieced sedimentary rock

Answer 12

Conglomerate

Question 13

caused by water moving back and forth (running water); non-random sorts of patterns

Answer 13

Ripple marks

Question 14

when water drops the particles off; material is set down
When a current deposits sediment, it tends to deposit them in sub-horizontal layers

Answer 14

Deposition

Question 15

Metamorphic rock

Answer 15

Quartzite

Question 16

Sedimary rock with small pieces

Answer 16

Sandstone

Question 17

we can’t say exactly when it happened, but relative to something else (before …., after….)

Answer 17

Relative geologic time

Question 18

exact dates, we know exactly when something happened

Answer 18

Absolute geologic time

Question 19

Floating on the asthenosphere

Answer 19

Isostasty

Question 20

Thin and dense

Answer 20

Oceanic lithosphere

Question 21

Thick and not very dense (floats)

Answer 21

Continental lithosphere