Download - Matter project 4ºB GROUP 2
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MATTER made by:Marta de CuencaMarta FrancoDavid F. T.Pablo Ferreras Serrano
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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.
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MOLECULES• Molecules is made when two or more atoms join
together.
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PURE SUBSTANCES• Are made from one type of atom or molecule.• There are two types of pure subtances.• Elements and compaunds.
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ELEMENTS AND COMPOUNDS
ELEMENTS• Are made from atoms.
COMPOUNDS• Are made from
molecules.
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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.
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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.
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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.
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SOLUTION• The solutions
are made from solute and solvent that forms the solutions
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CHANGE IN MATTERPHISICAL• Molecules move
about but their structure doesn't change.
CHEMICAL• New molecules are
made and the matter is changed forever.
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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.
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CHEMICAL• When an apple rots.• When iron rusts.• When wood burns.• When milk ferments.
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