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lesson 3


Solids, liquid, and gas most familiar states of matter
Solids Have a definite shape and definite volume Particles don't slide by each other
Liquids Have a definite volume but no definite shape Particles slide by each other
Gases No definite volume or shape Particles are far apart from each other
Mixtures 2 or more different substances mixed together, but each one keeps its own identity
Separating Mixtures Can use the physical properties to separate a mixture Magnets to separate metal from non-metals
Solutions A mixture where the particles are spread out evenly and don’t keep their own identity Lemonade
Solutions of a Solid in a Liquid When a solid dissolves, individual particles separate and spread evenly throughout a liquid Many ways to dissolve a solid faster
Solubility The ability of a solute to dissolve in a solvent If something doesn't dissolve, it is insoluble Different things have different solubility Sugar and artificial sweetener dissolve differently
Matter Matter is anything that has mass and takes up space Tacos People Pencils All things are made of matter All matter is made of tiny parts - particles
Elements Everything in the world is made of elements They make up every substance They can't be broken down into other substances



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