Introduction to Matter

Question 1

Melting butter is a physical change. Which best describes what is happening?

Revolt · Accepted Answer

The butter contains a new arrangement of atoms.

Question 2

Use the drop-down menus to determine the changes of state that are missing from the triangle. Label A: Label B: Label C:

Revolt · Accepted Answer

sublimation; Selection 1: sublimation; Selection 2: condensation; Selection 3: melting

Question 3

Question 3

Revolt · Accepted Answer

condensation

Question 4

Question 4

Revolt · Accepted Answer

melting

Question 5

Use the drop-down menus to match each description with the appropriate change of state. Piles of snow turn to puddles of water. Puddles of water gradually dry up. Frost builds up on a window.

Revolt · Accepted Answer

melting; Selection 1: melting; Selection 2: evaporation; Selection 3: deposition

Question 6

Question 15

Revolt · Accepted Answer

evaporation

Question 7

Question 16

Revolt · Accepted Answer

deposition

Question 8

Determine which change of state is being described in this passage.As the temperature decreases, the atoms lose energy. The atoms begin to move slower. They are held together by attractive forces, but are still able to slide past each other.

Revolt · Accepted Answer

gas to liquid

Question 9

Which changes of state are characterized by having atoms that gain energy? Check all that apply.

Revolt · Accepted Answer

melting; sublimation; vaporization

Introduction to Matter Answers

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