Earth

Question 1

Measuring the amount of parent and daughter material in a rock

Answer 1

Radio metric dating

Question 2

Used to date fossils, wood, and bones up to 50,000 years old

Answer 2

Radio carbon dating

Question 3

Processes of earth today are Similar to the ones in the past

Answer 3

Uniformitarianism

Question 4

Used to determine the age in years of rocks

Answer 4

Absolute dating

Question 5

When an element is replaced with a new one

Answer 5

Radioactive decay

Question 6

The time it takes for atoms to decay in half

Answer 6

Half life

Question 7

Gaps in rock layers

Answer 7

Unconformities

Question 8

Rock layers are tilted and uplifted

Answer 8

Angular unconformities

Question 9

Rock layers look complete but a gap is still present

Answer 9

Disconformities

Question 10

Igneous and metamorphic rock is uplifted and eroded

Answer 10

Nonconformities

Question 11

Fossilized evidence of organisms activity

Answer 11

Trace fossil

Question 12

Species that inhabited the Earth at one time for a short time

Answer 12

Index fossils

Question 13

The oldest rock layer is on the bottom and the youngest rock layer is on the top

Answer 13

Principle of superposition

Question 14

Does not tell you actual age or time of events

Answer 14

Relative dating