Explaining Properties of Matter

Question 1

Chemical Properties

Answer 1

A property that can be observed only by changing the identity of a substance

Question 2

Physical Properties

Answer 2

A property that can be observed without changing the identity of a substance

Question 3

Appearance

Answer 3

What something looks like

Question 4

Thermal Conductivity

Answer 4

How easily heat can pass through a material

Question 5

Electrical Conductivity

Answer 5

How easily electricity can pass through a material

Question 6

Magnetic

Answer 6

A material that gets attracted to a magnet

Question 7

Malleability

Answer 7

How easy it is to bend a material

Question 8

Ductility

Answer 8

How easy it is to draw a material into a wire

Question 9

Density

Answer 9

Mass divided by volume. How much matter there is in a given volume.

Question 10

Hardness

Answer 10

How well a material resists deformation

Question 11

Lustre

Answer 11

How well a material reflects light. How shiny it is.

Question 12

Alloy

Answer 12

A mixture of two or more metals

Question 13

Acid

Answer 13

A chemical that produces hydrogen ions when dissolved in water.

Question 14

Alkali

Answer 14

A chemical that produces hydroxide ions when dissolved in water.

Question 15

Neutral

Answer 15

A solution that has a pH of 7.

Question 16

pH

Answer 16

A measure of how acidic or alkaline a solution is

Question 17

Indicator

Answer 17

A substance that changes colour in solutions of different pH

Question 18

Solution

Answer 18

A mixture of a solute (solid) dissolved in a solvent (liquid). E.g. salt water

Question 19

Concentration

Answer 19

The amount of a substance dissolved in water

Question 20

Nutrealisation Reaction

Answer 20

A reaction between an acid and an alkali resulting in a neutral solution.