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Mixtures
Two or more types of matter combined physically
ex. salad, soda, granite, lucky charms, soil
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Homogeneous Mixture
A mixture where substances are evenly spread out (dissolved). (unable to see different substances)
ex. salt water, brass, soda
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Heterogeneous mixture
A mixture where substances do not evenly spread out (do not dissolve) (can see substances)
ex. salad, mixed vegetables, soil
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Solutions
A homogeneous mixture. Solid, liquid, gas (any combo of)
ex. soda, salt water, sugar water
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Compounds
A chemical substance made of two or more different elements
ex. water, carbon dioxide, sugar
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Elements
A substance that cannot be broken down by chemical or physical means.
ex. oxygen, nitrogen, gold, sodium
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Physical change
A change in which no new substance is made. A change in mass, volume, shape or density.
ex. cut wood, melted chocolate, dissolved salt
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Chemical change
A change in which a new substance is created.
ex. H20 + CO2 + sunlight ---->HCO + O2, burned toast
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