matter project 4ºb group 2

MATTER made by:Marta de CuencaMarta FrancoDavid F. T.Pablo Ferreras Serrano

ATOMS• An atom is the smallest particle of matter.• It is extremly small.• https://www.youtube.com/watch?v=R1RMV5qhwyExm

• They are 100 types of atoms.

MOLECULES• Molecules is made when two or more atoms join

together.

PURE SUBSTANCES• Are made from one type of atom or molecule.• There are two types of pure subtances.• Elements and compaunds.

ELEMENTS AND COMPOUNDS

ELEMENTS• Are made from atoms.

COMPOUNDS• Are made from

molecules.

PROPERTIES• HARD: materials are very dificult to scratch or cut,

example: steel.• SOFT: materials are scratch or cut easily, example: glass.• TOUGTH: materials are very difficult to break, example:

steel.• FRAGILE: materials break easily, example: glass.• PLASTIC: materials are easy to bend, example: polythene.• ELASTIC: materials go back to their shape after we squash

or stretch them, example: sponge.

THERMALS

INSULATORS• Is a material can't conductor

heat, because their molecules are close together and can't get hot.

CONDUCTORS• Is a material transport heat

easily, because their molecules are free.

MIXTURES

HETEROGENEOUS• We can see the

separate subtances.• Molecules don't mix.

HOMOGENEOUS• We can't see the separate

subtances.• Molecules mix.• Called a solution.The subtance

that dissolves is called solute and the subtance tha dissolvesit is called the solute.

SOLUTION• The solutions

are made from solute and solvent that forms the solutions

CHANGE IN MATTERPHISICAL• Molecules move

about but their structure doesn't change.

CHEMICAL• New molecules are

made and the matter is changed forever.

PHISICAL• Fold paper and change its shape.• Fly a kite and change its place.• Freeze a yoghurt and change its state.• Heat milk and change its temperature.

CHEMICAL• When an apple rots.• When iron rusts.• When wood burns.• When milk ferments.