Introduction to Matter

Anything that has mass and takes up space is called

• matter.

• homoegeneous.

• energy.

• heterogeneous.

What holds atoms together in a molecule?

• gravity

• physical bonds

• chemical bonds

• density

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H₂O, CO₂, and C₁₂H₂₂O₁₁ are all examples of chemical

• bonds.

• properties.

• changes.

• formulas.

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Soil, a salad, and sugar water are all examples of

• mixtures.

• compounds.

• elements.

• atoms.

How do liquid water, ice, and water vapor differ from each other?

• They are different states of matter.

• They are made of different kinds of atoms.

• They are different compounds.

• They are made of different kinds of molecules.

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One example of a physical change is

• burning paper.

• baking cookies.

• dissolving salt in water.

• toasting marshmallows.

One example of a chemical change is

• crushing a can.

• burning wood.

• filtering a mixture.

• boiling water.

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Fireworks exploding in the sky and giving off light are an example of a(n)

• change in mass.

• exothermic change.

• endothermic change.

• physical change.

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Table salt and water are examples of

• substances.

• atoms.

• elements.

• mixtures.

All elements are made of basic particles called

• compounds.

• atoms.

• molecules.

• mixtures.

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