Matter Matter.

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Presentation transcript:

Matter Matter

Solids, liquids and gases Matter

Solids, liquids and gases Matter

In a state: Particles everywhere! Solid: particles close together, vibrating in fixed places Liquid: particles close together, but they can move past each other Gas: particles far apart, moving quickly Matter

Particle evidence Solids, liquids and gases expand when heated Dye diffuses through liquid water Smells diffuse through air Matter

melting solid liquid freezing boiling liquid gas condensing Changes melting solid liquid freezing boiling liquid gas condensing Matter

Gases Air contains about 78% nitrogen and 21% oxygen You need oxygen to live Helium is a very light gas Carbon dioxide is a heavy gas You breathe out a bit more carbon dioxide than you breathe in Matter

Dissolving Some chemicals dissolve in water Some chemicals do not dissolve in water Particles of the solid diffuse through the water Heating speeds up dissolving Stirring speeds up dissolving Matter

particle liquid solid gas diffuse melt dissolve Key words particle liquid solid gas diffuse melt dissolve freeze melt boil condense expand shape ice contract pour squash state boiling point melting point Matter