States of matter

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SOLIDS They have a definite shape and a definite volume.

All particles are very close together.

LIQUIDS Liquids have an indefinite shape and a definite volume.

Particles are not very close together.

GASES Gases have an indefinite shape and an indefinite volume.

Particles of gases are very far apart and move freely.

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Look at the pictures. Say whether the part is a solid, a liquid or a gas.

E.g. Hot air is a gass

The sky is a …

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PHASE CHANGE DESCRIPTION HEAT MOVEMENT DURING PHASE

CHANGE

MELTING Solid to liquid Heat goes into the solid as it melts.

FREEZING Liquid to solid Heat leaves the liquid as it freezes.

VAPORIZATION (Boiling and evaporation)

Liquid to gas Heat goes into the

liquid as it vaporizes.

CONDENSATION Gas to liquid Heat leaves the gas

as it condenses.

SUBLIMATION Solid to gas Heat goes into the solid as it sublimates.

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Does it solidify? Does it freeze?

Does it melt? Does it

vaporizes?

• http://art4linux.org/system/files/liquid-1600.jpg

• http://www.globalnerdy.com/2009/07/17/dimecast-nets-solid-screencasts/

• http://www.bbc.co.uk/schools/teachers/

• http://upload.wikimedia.org/wikipedia/commons/thumb/f/fd/Orange_juice_1.jpg/220px-Orange_juice_1.jpg

• http://www.elconfidencial.com/fotos/salud/200801172chocolatedentro_20080118.jpg

• http://1.bp.blogspot.com/-1nbLa8mNNjk/TajTWdZdI1I/AAAAAAAAAds/CCAkw8MjWOU/s1600/wind.jpg

• http://4.bp.blogspot.com/-p2HUb3goRis/TihDb3ianwI/AAAAAAAAAbU/qXtE4c_OF3E/s1600/Hot+Air+Balloon.gif

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