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Third Grade Science

 

Changes in Matter Study Guide Third Grade

When matter is heated, it gains energy.

When matter is cooled, it loses energy.

Melt – to change from a solid to a liquid.

Boil – to change from a liquid to a gas QUICKLY.

Evaporate – to change from a liquid to a gas SLOWLY.

Condense – to change from a gas to a liquid.

Freeze – to change from a liquid to a solid.

Water is a special kind of matter: it gets larger when it freezes.

Physical change – a change in the way matter looks, but it is still the same kind of matter. Example: tearing paper.

Mixture – different kinds of matter mixed together.

Solution – one or more kinds of matter that are mixed evenly into another kind of matter.

Chemical change – a change that causes different kinds of matter to form. Example: burning wood.

Signs of a Chemical Change:

  • Light and Heat
  • Formation of Gas
  • Color Change

**Students should have numerous diagrams, foldables, and notes in their science notebooks that will provide all of the resources necessary to prepare for this test.