MATTER

ByMartín

PROPERTIES OF MATTER

Important definitions:

Mass:how much matter an object has

Volume: the quantity of space an object takes up

Do they have a definite shape? Yes, they do

Do they have a definite volume?

Yes, they do

SOLIDS

Do they have a definite shape?

LIQUIDS

No, they don´t

Do they have a definite volume?

Yes, they do

GASES

Do they have a definite shape? No, they don´t

Do they have a definite volume?

No, they don´t

Physicalchanges

Physical changes happen when matter changes shape and state, but the substance doesn´t change

Ice melting

Bending iron

Compressed air

Leaves changing colour

Elastic bands stretching

ChemicalChanges

Chemical changes are when new substances are produced

Burning a substance

Exposing metals to air

Exposing an apple to air

MixturesA mixture is something that contains two or more substances.

Heterogeneous mixtures

Homogeneous mixtures

Properties of materials

Rigid: it doesn´t

bend easily

Flexible: we can bend it

Elastic: it returns to its original

shape

Resistant: difficult to

break Fragile: it breaks easily

Waterproof: water can´t

pass through itPermeable: water can

pass

Heat conductor: heat passes through it easily

Heat insulator: heat can´t pass easily

Natural ManufacturedNatural materials come from nature Manufactured materials are

made from natural materials which are transformed in a manufacturing process.Animal

sPlants

Minerals

Silk

Leather

Wool

Rubber

Cotton

Wood

Rocks

Oil

T he 3 R´s

Packaging Shopping bags, boxes and jars

Glass, plastic, aluminium, paper, cars, electrical appliances, furnitures.

Because natural

resources will run out if we take too

many of them

Why are the three R´s important?

THE END