Changes in Matter

What is matter?

• Anything that has weight and takes up space.

• Tiny building blocks that make up objects.

• A distinguishing quality of an object.

• Something that is always solid.

What are particles?

• The tiny building blocks that make up matter.

• Anything that has weight and takes up space.

• A distinguishing quality of an object.

• Large, visible components of objects.

Which statement best describes a solid?

• Matter with a definite size and shape, where particles are tightly packed.

• Matter with a definite size but no definite shape, where particles can slide around.

• Matter with no definite size or shape, where particles move freely.

• Matter that can easily be moved through.

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What happens to the particles of a liquid when it is heated enough to become a gas?

• They slow down and pack together.

• They fly apart and move around freely.

• They remain tightly packed but vibrate faster.

• They become heavier and sink.