Unit 01: Investigating Properties of Matter

Heterogenous mixture

• a mixture that is uniform throughout

• a mixture that is not uniform throughout

• a mixture that can be easily separated

• a mixture that contains only one phase

Homogeneous mixture

• a mixture that is uniform throughout

• a mixture with distinct layers

• a mixture that can be easily separated

• a mixture that changes composition over time

Element

• a pure substance composed of the same type of atom throughout

• a mixture of different types of atoms

• a compound formed by chemical reactions

• a solution of various substances

Capillary action

• water seems to climb up small tubes due to adhesion

• water moves downwards in large tubes

• water remains stationary in small tubes

• water evaporates quickly in small tubes

Cohesion

• the property of water that causes it to stick to itself

• the ability of water to dissolve other substances

• the process of water moving through a plant

• the temperature at which water boils

Adhesion

• the property of water that causes it to stick to other objects

• the ability of water to resist external forces

• the process of water evaporating into the air

• the temperature at which water freezes

Acid

• a substance that neutralizes a base to form water; has a pH less than 7

• a substance that increases the pH of a solution

• a substance that has a pH of 7

• a substance that reacts with metals to produce hydrogen gas

Base

• a substance that neutralizes acid to form water; has a pH above 7

• a substance that increases the acidity of a solution; has a pH below 7

• a neutral substance with a pH of 7

• a substance that reacts with bases to form salts

pH

• the measure of how acidic or basic a solution is

• the measure of temperature in a solution

• the measure of the concentration of solutes in a solution

• the measure of the color intensity of a solution

Surface tension

• the cohesive property of water that causes it to resist external force.

• the ability of a liquid to flow easily under pressure.

• the measure of how much a liquid can expand when heated.

• the force that causes liquids to evaporate quickly.