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Unit 3 Matters
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Most materials and substances can change from one form to another when they are heated or cooled. This is called ...
change of state
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A describes what a substance or material is like, or how it behaves is called ...
property
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particles model of ...
solid
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An example of solid that behave like liquid is ...
salt, sugar, flour, sand
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A very small part or bit of something is called ...
particle
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the particles can slide past one another and change places
liquid
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... are made up of lots of very tiny pieces or grains.
powders
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It has fixed shape and fixed volume.
solid
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Solid substances melt when they ... heat.
gain
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model particle of ...
liquid
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It has no fixed shape and has fixed volume.
liquid
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An example of substance is ...
salt, sugar, oxygen,
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The change of state from liquid to solid is called ...
solidifying/freezing
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The change of state from solid to liquid is called ...
melting
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The spaces between the particles are very small. This property belongs to ...
solid
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physical change or chemical change
chemical change
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The particles are packed tightly together in a regular pattern. This property belongs to...
solid
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A pure type of solid, liquid or gas and it is not a mixture is called ...
substance
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the particles are also close together, but they are not packed in a regular pattern.
liquid
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name of the process
solidifying/freezing
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Is glass a material or a substance?
material
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name the process
melting
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Liquid substances solidify when they ... heat.
lose
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Everything around us is called ...
matter
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