5th Science Module 1 Vocab

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Boiling

Back

When a liquid gets hot enough to change into a gas. For example, water boils at 212°F (100°C).

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Chemical Reaction

Back

A process where substances change into new substances. Signs include color change, bubbles, or heat.

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Condensation

Back

When a gas cools down and changes into a liquid. You see this on cold drink cups or windows.

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Dissolving

Back

When a substance mixes completely with a liquid and seems to disappear. Like sugar in water.

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Gas

Back

A state of matter that spreads out to fill its container. Air is a gas.

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Mixture

Back

Two or more things combined, but each one keeps its own properties. Example: a salad or trail mix.

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Particle

Back

A tiny piece of matter. Everything is made up of particles too small to see.

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State

Back

The form matter takes: solid, liquid, or gas. Matter can change states when heated or cooled.

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Substance

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A kind of matter with the same makeup all the way through. Example: salt is a substance.