History of Earth Vocab Review

History of Earth Vocab Review

Assessment

Flashcard

Science

6th - 8th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

Age of rocks/fossils compared to others

Back

Relative Age

2.

FLASHCARD QUESTION

Front

Age of a rock in years since formation; the exact age.

Back

Absolute Age

3.

FLASHCARD QUESTION

Front

Geologic law stating that in horizontal sedimentary layers, each layer is older than the one above and younger than the one below.

Back

Law of Superposition

4.

FLASHCARD QUESTION

Front

Preserved remains or traces of living things.

Back

Fossils

5.

FLASHCARD QUESTION

Front

Determining the age of an object using the half-life of radioactive isotopes.

Back

Radioactive dating

6.

FLASHCARD QUESTION

Front

Nuclei of radioactive elements break down, releasing fast-moving energy particles.

Back

Radioactive Decay

7.

FLASHCARD QUESTION

Front

Record of geologic events and life forms in Earth's history, divided into Eons/Era/Periods/Epochs.

Back

Geologic Time Scale

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