Unit 1 Mix and Flow of Matter

Question 1

Solid

Answer 1

The state of matter in which a substance has a definite shape and a definte volume(e.g.., ice)

Question 2

Liquid

Answer 2

The state of matter in which a substance has a definite volume, but no definite shape(e.g..,water)

Question 3

Gas

Answer 3

The state of matter in which a substance has neithera definite shape nor a definite volume(e.g.., water vapour)

Question 4

Pure substance

Answer 4

A material that contains only one kind of particle.

Question 5

proprerties

Answer 5

Characteristics that describe matter.

Question 6

Mixture

Answer 6

A combination of two or more pure substances such as that each one’s properties are not lost, but maybe hidden

Question 7

Homogeneous

Answer 7

The same in structure, quality, or kind

Question 8

Solution

Answer 8

A homogenous mixture of two or more pure substances

Question 9

Heterogeneous

Answer 9

Made up of parts, or mixed.

Question 10

Suspension

Answer 10

A heterogeneous mixture in which particles settle slowly after mixing.

Question 11

Colloid

Answer 11

A heterogeneous mixture in which particles do not settle

Question 12

Emulsion

Answer 12

A mixture in which droplets of fat are prevented from joining together by an emulsifying agent

Question 13

Mechanical mixture

Answer 13

A substance made of more than one kind of material, in which the different materials can be easily identified.

Question 14

Phases

Answer 14

a distinct period or stage in a series of events or a process of change or development.

Question 15

dissolving

Answer 15

mixing a solute completely with a solvent to form a solution; the distinct properties of each of the materials combine into one set of properties.

Question 16

solute

Answer 16

a substance that can be dissolved in a solvent; for example, salt is a solute that dissolves in water.

Question 17

solvent

Answer 17

a substance into which a solute may be dissolved; for

example, water is a solvent that dissolves sugar.

Question 18

soluble

Answer 18

of a substance, able to be dissolved in a particular solvent; something that is soluble is called a solute.

Question 19

rate of dissolving

Answer 19

the speed at which a solute dissolves in a solvent.

Question 20

agitation

Answer 20

a state of anxiety or nervous excitement.

Question 21

saturated solution

Answer 21

a solution in which no more of a solute is able to be dissolved at a particular temperature.

Question 22

unsaturated solution

Answer 22

a solution in which more of a solute can be dissolved at a particular temperature.

Question 23

supersaturated solution

Answer 23

a solution that contains more solute than would normally dissolve at a particular temperature.

Question 24

insoluble

Answer 24

the materials or forms of energy that are used by a system to do work or to produce new materials (output)