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Anything that has mass and takes up space.
Matter that contains only one kind of particle.
Matter that contains more than one kind of particle.
A pure substance that cannot be broken down into simpler parts by chemical methods.
A pure substance made of two or more elements that are chemically combined.
A characteristic of a substance that can be observed and measured without changing the identity of the substance.
e.g. colour, appearance, melting/boiling point, density
The measure of a substance's resistance to flow.
The temperature at which a solid turns into a liquid.
The temperature at which a liquid turns into a gas.
e.g. The boiling point of water is 100 degrees Celsius.
A measure of the ability of a substance to dissolve in another substance.
e.g. salt is a solute that dissolves well into water.
The ratio of the mass of a substance to the volume it occupies.
e.g. The formula for density is D=m/V.
The ability of a substance to change (react) and form new substances.
e.g. reactivity with water, acids, oxygen, combustibility, toxicity
The ability of a substance to burn in air.
e.g. Propane is combustible, and it is used for heat air in hot air balloons.
The ability of a substance to remain unchanged.
e.g. wood remains fairly stable in water.
The ability of a substance to cause harmful effects to plants and animals.