Classification of Matter

Question 1

Substance made of atoms that are all alike

Answer 1

Element

Question 2

Two or more elements that are chemically combined and cannot be separated by physical means

Answer 2

Compound

Question 3

Two or more substances that are only physically mixed together and can be easily separated

Answer 3

Mixture

Question 4

Mixture that remains constantly and uniformly mixed and has particles so small they cannot be seen with a microscope. Also called a solution

Answer 4

Homogeneous Mixture

Question 5

All substances in the mixture are distinguishable

Answer 5

Heterogeneous Mixture

Question 6

Are a heterogeneous mixture that is made up of liquid and solid parts that will settle out if left undisturbed

Answer 6

Suspension

Question 7

Are heterogeneous mixtures containing water, fat, and proteins that never settle out of the mixture

Answer 7

Colloid

Question 8

Any characteristic of material/substance

color, shape, size, density, melting point, boiling point, state of matter

Answer 8

Physical Properties

Question 9

capability of being shaped or extended by hammering, forging, etc

Answer 9

Malleability

Question 10

the degree to which a materiel can sustain deformation under tensile stress before failure

Answer 10

Ductility

Question 11

mass is not created nor destroyed, it is conserved in any physical or chemical reaction

Answer 11

Law of Conservation of Mass

Question 12

ability to scatter light

Answer 12

Tyndall Effect

Question 13

solidification of atoms or molecules into a highly structured form called crystal (water to ice cubes or snow)

Answer 13

Crystallization

Question 14

process of separating components of a mixture based on different boiling points (Purification of alcohol)

Answer 14

Distillation

Question 15

conversion of a substance from the solid to the gaseous state without it becoming liquid (dry ice exposed to room temperature)

Answer 15

Sublimation

Question 16

a change of one substance into another

• rotting, burning, rusting, cooking
• evidence: odor, gas bubbles, color change, sound, heat, light

Answer 16

Chemical change