Brainscape's Knowledge GenomeTM

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


See full index

Earth Science > Chapter 3- Supplementary Materials > Flashcards

Chapter 3- Supplementary Materials Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

Apparent age

A

Age based on evidence obtained by indirect means

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

Archaeology

A

The scientific study of the material remains of the past human life and activities

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

Daughter product

A

A new element formed as a result of radioactive decay

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

Ejecta (volcanic)

A

Material blown out in the eruption of a volcano

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

Fiat creation

A

Brought into existence by Divine command

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

Half-life

A

The time needed for one half of the atoms of a radioactive substance to decay

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

Inorganic

A

Pertaining to things from non living sources

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

Isotope

A

Atoms of the same element, but with different numbers of neutrons

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

Lunar

A

Pertaining to the moon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Meteorite

A

A celestial body that enters the earths atmosphere and hits the surface.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What does the Principle of Uniformity state?

A

“The present is the key to the past”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Radioactive decay

A

The process of on element becoming another by giving off particle or rays

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Radiometric age

A

The age determined by comparing the amount of radioactive parent elements and its stable daughter product present in the sample

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Radiometric dating

A

The measurement of geologic time by means of the rate of disintegration of radioactive elements

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Salinity

A

Th concentration of salt in solution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Sedimentation

A

The depositing of silt, mud, sand, and gravel by wind or water.

17
Q

4 common daughter pairs?

A

Uranium-238 Lead-206
Potassium-40 Argon-40
Rubidium-87 Strontium-87
Carbon-14 Nitrogen-14

18
Q

Radioactivity

A

The natural process of unstable elements changing into another element that is no longer radioactive

19
Q

4 things give off during radioactivity

A

Alpha particles
Beta particles
Gamma rays
X-rays

20
Q

Is the half life of an element predictable or subject to change?

A

Predictable

21
Q

What kind of material would you date, using the Carbon-14 method?

A

Anything organic with Carbon in it (Plants, animals, people, rocks,.. etc

22
Q

Two events which are known to have changed the ratios of radioactive and non- radioactive carbon in the atmosphere?

A

The industrial revolution

The hydrogen bomb

23
Q

If there is a Uranium to Lead decay sequence, which is one is the Daughter Product?

A

Lead

24
Q

What is a hydrogen bomb?

A

From 1954 to around 1963, trees all over the world
sucked in extra dollops of Carbon-14. All trees around the world that were alive in 1954 have a marker in them that shows that they went through a huge ‘spike’ in Carbon-14

25
Q

What are the two weak assumptions that radiometric dating is based on?

A
  1. The assumption that the clock was reset to zero
  2. The assumption that the system under study has remained closed to outside elements, and that is impossible because we weren’t present during the event and able to immediately isolate the sample from its surroundings.
26
Q

What is the Palermo Stone and Ebla tablet?

A

They are the oldest written historical records.

27
Q

What are the only records that span the entire history of life?

A

The Holy Bible and some other religious writings

28
Q

What ages do we get for the earth in the Bible?

A

Anywhere from 6,000-7,700 years

29
Q

What dos science say about the age of the earth?

A

That it is millions of years old

30
Q

Who founded the principle “the present is the key to the past”?

A

James Hutton

31
Q

What is a reason for the conflicting ages of the earth?

A

The failure of the assumptions to account for “storms”

32
Q

An element is said to be radioactive if it is…..

A

Capable of spontaneously changing into another element through the emission of a charge particle

33
Q

What is the original radioactive element?

A

The Parent isotope

34
Q

What atomic number does an element have to be greater than to be atomic?

A

83

35
Q

What is Tritium half life?

A

12.33 years

36
Q

What does Radioactive decay end?

A

When a non radioactive element is formed

Earth Science (10 decks)

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