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Matter
- Anything that has mass and occupies space
- i.e. wood, air, water
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Pure substance
- Matter that contains only one kind of particle
- ex; sulfur
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Mixture
Matter that contains more than one kind of particle
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Element
- A pure substance that cannot be broken down into simpler parts by chemical methods
- ex; hydrogen,helium, lithium, berillium
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Compound
- A pure substance made of two or more different elements that are chemically combined
- ex; water, table salt(sodium chloride), carbon dioxide
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Physical property
A characteristic of a substane that can be observed and measured without changing the identity of the substance
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Viscosity
The measure of a substance's resistance to flow
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Melting point
The temperature at which a solid turns into a liquid
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Boiling point
- The tempertaure at which a liquid turns into a gas
- ex; Water's boiling point is 100 degrees celcius
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Solubility
A measure of the ability of a substance to dissolve in another substance
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Density
The ratio of the mass of a substance to the volume it occupies
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Chemical property
The ability of a subtance to change or react, and to form a new substance
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Combustibility
The ability of a substance to burn in air
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Stability
The ability of a substance to remain unchanged
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Toxicity
The ability of a substance to cause harmful effects in plants and animals
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