Question 1

the process by which energy or matter penetrates an object's surface and is taken in by that object

Accepted Answer

absorption

Question 2

having a pH less than 7

Accepted Answer

acidic

Question 3

a measure of how much of the Sun's energy is reflected off an object back out to space

Accepted Answer

Albedo effect

Question 4

having a pH greater than 7

Accepted Answer

alkaline

Question 5

the change of state from a gas to a liquid

Accepted Answer

condensation

Question 6

the degree of compactness of a substance.

Accepted Answer

density

Question 7

the change of state from a liquid to a gas

Accepted Answer

evaporation

Question 8

a state of matter that has a definite volume but not a definite shape

Accepted Answer

liquid

Question 9

a change directly from the solid to the gaseous state without becoming liquid

Accepted Answer

sublimation

Question 10

a state of matter with no definite shape or volume

Accepted Answer

gas

Question 11

a state of matter that has a definite shape and a definite volume

Accepted Answer

solid

Question 12

a liquid substance capable of dissolving other substances

Accepted Answer

solvent

Question 13

a mixture that forms when one substance dissolves another and the particles are evenly spread out

Accepted Answer

solution

Question 14

an attraction between molecules of different substances

Accepted Answer

adhesion

Question 15

an attraction between molecules of the same substance

Accepted Answer

cohesion

Question 16

describes a molecule in which the positive and negative charges are separated

Accepted Answer

polar

Question 17

the change in state from a solid to a liquid

Accepted Answer

melting

Question 18

pH of 7

Accepted Answer

neutral

Question 19

a solution where the solvent is water

Accepted Answer

aqueous

Question 20

a measurement of how much solute exists within a certain volume of solvent

Accepted Answer

concentration

Question 21

a substance that is dissolved in a solution.

Accepted Answer

solute

Question 22

to make a liquid less concentrated or weaker by adding water or another solvent to it

Accepted Answer

dilute

Question 23

the change of state from a gas to a solid without going through the liquid state

Accepted Answer

deposition

Question 24

the change of state from a liquid to a solid

Accepted Answer

freezing

Question 25

the bouncing back of a ray of light, sound, or heat when the ray hits a surface that it does not go through

Accepted Answer

reflection

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