Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Biology > Dating > Flashcards

Dating Flashcards

1
Q

Radiometric Dating

A

Measuring radioactivity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Types of Radioactivity

A

Weak nuclear, strong nuclear, gravity, electromagnetic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Radioactivity

A

Bits of matter or energy in the form of photons emitted from the nucleus of an atom

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Half-Life

A

The time it takes for 1/2 of the radioactive isotopes in a sample to undergo decay. By measuring how much radioactivity remains in a sample you can tell how old it is.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Absolute dating

A

Radioactivity in the fossil itself is date

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Carbon 14

A

Carbon 14 is a radioactive isotope. Carbon cycle ends and Carbon 14 continues to decay. the ratio tells us how long ago something died.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Theory

A

Why something happens, explanation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Scientific Fact

A

Directly measurable

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Relative Dating

A

Date the rock and soil layers in which the fossil is found. Useful for old fossils.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly

Biology (15 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions