Physical and Chemical Properties

Question 1

Ductile

Answer 1

capable of being shaped or bent or drawn out into a wire

Question 2

Malleable

Answer 2

capable of being shaped or bent with a hammer

Question 3

conductor

Answer 3

a substance that readily transfers energy e.g. electricity and heat

Question 4

insulator

Answer 4

a substance that does not readily transfer energy e.g. electricity and heat

Question 5

luster

Answer 5

the visual property of something that shines with reflected light

Question 6

flammable

Answer 6

able to catch fire easily

Question 7

reactive

Answer 7

likely to undergo a chemical change

Question 8

boiling point

Answer 8

temperature at which an object will change from liquid to gas

Question 9

density

Answer 9

the ratio of mass to volume (density=mass/Volume)

Question 10

hardness

Answer 10

the scratchability of a substance

Question 11

brittle

Answer 11

the ability of an object to break when it is struck with a hammer

Question 12

melting point

Answer 12

temperature at which an object will change from soli to liquid

Question 13

viscosity

Answer 13

the ability of an liquid to resist flowing (thickness)

Question 14

distillation

Answer 14

the process of purifying a liquid by boiling it and condensing its vapors

Question 15

filtering

Answer 15

the process of separating a mixture by the size of its particles

Question 16

decanting

Answer 16

pouring liquid off the top when sediment has settled to the bottom

Question 17

centrifugation

Answer 17

the process of separating substances by the use of a centrifuge … used to separate cells or mixtures of cells without destroying them; you spin them and they settle at different levels in the test tube on the basis of their respective densities

Question 18

chromotography

Answer 18

A process which separates the parts of a solution with special paper and a solvent.

Question 19

magnetic

Answer 19

a characteristic of those metals that are attracted to magnets and can be made into magnets