Matter

Front 1

Matter

Back 1

Anything that has mass and takes up space is called matter.

Hint 1

e.g. plastic, phone, table.

Front 2

Physical Properties.

Back 2

A characteristic of matter that can be observed or measured without creating a new substance.

Hint 2

e.g. Clarity, malleable, ductile

Front 3

Solubility

Back 3

The ability of a substance to dissolve in another substance.

Hint 3

Salt is soluble in water.

Front 4

Quantitative physical properties

Back 4

Properties that can be measured

Hint 4

E.g. boiling point, melting point

Front 5

Qualitative physical properties

Back 5

Properties that can be observed with one's senses.

Hint 5

e.g. colour, odor, texture

Front 6

Chemical property

Back 6

Describes how a substance behaves when it reacts to form a new substance

Hint 6

e.g. combustibility- match stick burning , reaction with acid

Front 7

Combustibility

Back 7

The ability of a substance to burn.

Hint 7

e.g. burning of firewood

Front 8

Element

Back 8

A pure substance made up of one type of atom with its own distinct properties.

Hint 8

e.g. Iron, Calcium

Front 9

Compound

Back 9

A pure substance made up of two or more different atoms molecules, that can only be broken down into simpler substances by chemical means.

Front 10

Clues to chemical change taking place

Back 10

Change in color;
Change in odor;
Change in temperature;
Formation of a gas or precipitate;
Light produced
Energy change (gain/loss of energy)

Front 11

Alloy

Back 11

A solid solution of two or more metals

Hint 11

E.g. Stainless Steel is an alloy made of iron, Nickel and Chromium.
Brass is an alloy made of copper and zinc.
Bronze is an alloy made of copper mixed with tin.

Front 12

Properties of non-metals

Back 12

In solid form non-metals are dull and brittle, not good conductors of heat and electricity.

Front 13

Why is nickel not used for body piercing

Back 13

Nickel reacts with substances in the body and causes rash, so it is not safe to be used for body piercing.

Front 14

Ions

Back 14

Electrically charges atoms (positive or negative)

Front 15

Cation

Back 15

Positively charged ions. Cations are formed when an atom loses electrons. Metals and Hydrogen form cations.

Hint 15

Na lose 1 electron - Na1+

Front 16

Anion

Back 16

Negatively charged ions. Formed when atoms gain electrons. Most non-metals form anions.

Hint 16

Cl gains one electron - CL1-

Front 17

Ionic Compounds

Back 17

Substances composed of cations and anions.

Front 18

hardness

Back 18

The measure of the resistance of a solid to be scratched or dented.

Front 19

malleable

Back 19

The ability of a substance to be hammered out or bent into different shapes.

Front 20

ductility

Back 20

The ability of a substance to be pulled into wires.

Front 21

state

Back 21

the form that matter is in while at room temperature

Front 22

viscosity

Back 22

The property of a liquid that prevents it from flowing

Front 23

texture

Back 23

The sensation caused by touching a substance to determine its outer feel

Front 24

clarity

Back 24

the property that allows the transmission of light to pass

Front 25

taste

Back 25

the property that triggers four different sense organs in the mouth

Front 26

lustre

Back 26

the brightness or dullness of a substance

Front 27

odour

Back 27

the property that triggers the sense organs in the nose

Front 28

shape

Back 28

the 3D characteristics of a substance

Front 29

physical change

Back 29

the ability of a substance to be changed without creating a new substance

Hint 29

melting of marshmallows

Front 30

chemical change

Back 30

a change in which one or more new substance is formed

Hint 30

cooking of eggs, burning of candle

Front 31

precipitate

Back 31

The solid that forms when two liquids are mixed

Hint 31

Adding vinegar to milk will curdle it forming white solid substance

Front 32

density

Back 32

the measure of how much mass is contained in that given volume of the substance

Front 33

characteristic property

Back 33

a property that is unique to a substance and that can be used to identify the substance

Hint 33

e.g. boiling point. melting point, freezing point, density.

Front 34

proton

Back 34

a positively charged particle of an atom that is found in the nucleus.

Front 35

electron

Back 35

a negatively charged particle of an atom that is found orbiting the nucleus

Front 36

neutrons

Back 36

a neutral particle of an atom found in the nucleus.

Front 37

element

Back 37

a pure substance that cannot be broken down into simpler substances either physically or chemically. it is made up of only one kind of atom.

Hint 37

e.g. silver, gold, oxygen, boron.

Front 38

periodic table

Back 38

The table that lists all the known elements in rows and columns based on patterns of similar
properties

Front 39

atomic number

Back 39

The number of protons in an atom of an element.

Front 40

period

Back 40

A horizontal row in the periodic table of elements

Front 41

group / chemical family

Back 41

A vertical column in the periodic table of elements

Front 42

Conductivity

Back 42

The ability of a material to conduct electrical or thermal energy

Hint 42

e.g. metals are good conductors of heat and electricity

Front 43

metal

Back 43

a shiny substance that is good conductor of electricity and heat, malleable, ductile, most react with acids.

Hint 43

e.g. gold, copper, iron, silver, lead,

Front 44

non-metals

Back 44

an element that is usually gas at room temperature or a dull brittle solid, which is a poor conductor of electrical and thermal energy.

Hint 44

e.g. oxygen, nitrogen, carbon, neon

Front 45

halogens

Back 45

elements in the group 17 of the periodic table of elements.

Hint 45

e.g. bromine, chlorine, iodine, fluorine, astatine.

Front 46

uses of halogens

Back 46

bromine- used in dyes, photography, medicines, pesticides,
iodine- mixed with alcohol to disinfect wounds.
chlorine- used to disinfect water for drinking or swimming.

Front 47

noble gases

Back 47

elements in the group 18 of the periodic table that rarely react but have many uses

Hint 47

e.g. helium, xenon, neon, argon,

Front 48

uses of noble gases

Back 48

helium- used in balloons
xenon- used in high intensity car lights
neon- used in light up signs
argon- gives off brightly coloured light when lit