eds 9-10 unit test elise

Question 1

Law of superposition

Answer 1

Older rock is found below newer rock.

Question 2

Law of horizontality

Answer 2

Rock is still the same age if it gets deformed or tilted sideways, the order of age is the same

Question 3

Law of crosscutting

Answer 3

If a rock intrusion or fault happens, the intrusion or fault is older than the layers that it effects.

Question 4

Strata

Answer 4

Layer of rock

Question 5

What type of rock are fossils generally found in?

Answer 5

Sedimentary

Question 6

What is relative dating?

Answer 6

Not exact, older, younger, etc.

Question 7

What is absolute dating?

Answer 7

When scientists use radioactive elements to determine the exact age of a fossil.

Question 8

What radioactive element is found in fossils that were living?

Answer 8

Carbon 14

Question 9

What radioactive element is found in fossils that were never living?

Answer 9

Potassium 40

Question 10

What is the difference between a cast and a mold?

Answer 10

A mold is the imprint of a fossil and a cast is the result of sediments in a mold.

Question 11

Where are copper deposits usually found?

Answer 11

Where volcanic or seismic activity is found.