Absolute Dating

Question 1

Use the drop-down menus to complete the paragraph.

Revolt · Accepted Answer

Geologists determine absolute age by comparing the amounts of radioactive and nonradioactive elements in rock. The radioactive, or , elements decay into nonradioactive elements. Because this rate of d: igneous; Geologists determine absolute age by comparing the amounts of radioactive and nonradioactive elements in rock. The radioactive, or , elements decay into nonradioactive elements. Because this rate of d: unstable; Geologists determine absolute age by comparing the amounts of radioactive and nonradioactive elements in rock. The radioactive, or , elements decay into nonradioactive elements. Because this rate of d: constant; Geologists determine absolute age by comparing the amounts of radioactive and nonradioactive elements in rock. The radioactive, or , elements decay into nonradioactive elements. Because this rate of d: stable

Question 2

✔ unstablebalanced stable unbalanced

Revolt · Accepted Answer

✔ unstable

Question 3

changing slow ✔ constant

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✔ constant

Question 4

unnatural✔ radioactivemagnetic

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✔ radioactive

Question 5

Use the drop-down menus to select the correct answers to complete the paragraph.

Revolt · Accepted Answer

✔ atoms; The building blocks of matter are called . A substance made up of the same kind of atoms is called a(n) . elements lose particles. This makes them .: atoms; The building blocks of matter are called . A substance made up of the same kind of atoms is called a(n) . elements lose particles. This makes them .: element; The building blocks of matter are called . A substance made up of the same kind of atoms is called a(n) . elements lose particles. This makes them .: Unstable; The building blocks of matter are called . A substance made up of the same kind of atoms is called a(n) . elements lose particles. This makes them .: radioactive

Question 6

particle✔ elementmaterial

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✔ element

Question 7

Stable ✔ UnstableSolid

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✔ Unstable

Question 8

A scientist is studying a radioactive element that has a half-life of 63 years. Choose the correct answers from the drop-down menus to complete each statement about the element. It will take years for half of the sample to decay. In 189 years, of the sample will be left. Scientists can figure out how old a sample is by multiplying the by the length of the half-life.

Revolt · Accepted Answer

63; Selection 1: 63; Selection 2: one-eighth; Selection 3: number of half-life cycles

Question 9

one-half✔ one-eighthone-sixteenth

Revolt · Accepted Answer

one-eighth

Question 10

✔ number of half-life cyclesyearsweight of the sample

Revolt · Accepted Answer

number of half-life cycles

Absolute Dating Answers

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