Exploring Matter and Chemical Changes

Front

Back

Front

Back

Two hydrogen atoms and one oxygen atom

Front

Which of the following is an example of a physical change? Burning wood, Melting ice, Rusting iron, Baking a cake

Back

Melting ice

Front

In a solution of saltwater, what is the solute?

Back

Salt

Front

What best describes a compound?

Back

A substance made of two or more different elements chemically combined

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Back

2

Front

Which of the following is a chemical change? Boiling water, Dissolving sugar in water, Burning a candle, Breaking a glass

Back

Burning a candle

Front

What happens to the concentration of a solution if more solvent is added?

Back

It decreases

Front

Which statement correctly compares elements and compounds?

Back

Elements are made of one kind of atom, compounds are made of two or more kinds of atoms.

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