Science Chapter 3

Question 1

Suspension

Answer 1

A mixture in which particles can be seen and easily separated by settling or filtration.

Question 2

Solution

Answer 2

A well mixed mixture

Question 3

Solvent

Answer 3

The part of a solution present in the largest amount and that dissolves other substances.

Question 4

Solute

Answer 4

The part of a solution present in a lesser amount and that is dissolved by the solvent.

Question 5

Dilute solution

Answer 5

A mixture that has little solute dissolved in it.

Question 6

Concentrated Solution

Answer 6

A mixture with a lot of solute dissolved in it.

Question 7

Solubility

Answer 7

A measure of how well a solute can dissolve in a solvent at a given temperature.

Question 8

Saturated Solution

Answer 8

A mixture that has so much solute in it that no more will dissolve.

Question 9

Unsaturated solution

Answer 9

A mixture in which more solute can be dissolved.

Question 10

Acid

Answer 10

A substance that tastes sour, reacts with metals and carbonated, and turns litmus paper red.

Question 11

Corrosive

Answer 11

The way in which acids react with some metals so as to eat away the metal.

Question 12

Indicator

Answer 12

A compound that changes color in the presence of an acid or base.

Question 13

Base

Answer 13

A substance that tasted bitter, feels slippery, and turns litmus paper blue.

Question 14

Hydrogen Ion

Answer 14

A positively charged ion (H+) formed of a hydrogen ion that has lost its electron.

Question 15

Hydroxide Ion

Answer 15

A negatively charged ion made of oxygen and hydrogen, OH-

Question 16

pH Scale

Answer 16

A measure of the concentration of hydrogen ions in a solution.

Question 17

Neutralization

Answer 17

A reaction of an acid with a base, yielding a solution that is not acidic or basic as the starting solutions were.

Question 18

Salt

Answer 18

An ionic compound that can from from the neutralization of an acid with a base.

Question 19

Digestion

Answer 19

The process that breaks down compounds into simpler products.

Question 20

Mechanical Digestion

Answer 20

The physical process that tears, grinds, and mashes large food particles into smaller ones.

Question 21

Chemical Digestion

Answer 21

The process that breaks large food molecules into smaller ones.

Question 22

Acid Rain

Answer 22

More acidic rain than the average with a pH of 5.5. It has a pH of 3.5-3.0.