8th Grade Science Winter Benchmark Review

Front

What state of matter has molecules that are in contact with each other but free to move?

Back

Liquid

Front

What happens when a candle burns?

Back

A different chemical substance is formed.

Front

Which of the following symbolizes a molecule of a compound: He, Be, N2, NaCl?

Back

NaCl

Front

What is the charge of a neutron?

Back

No charge

Front

What is the term for the amount of matter in an object?

Back

Mass

Front

What is the state of matter where molecules are tightly packed and vibrate in place?

Back

Solid

Front

What is the state of matter where molecules are far apart and move freely?

Back

Gas

Front

What is formed when a chemical reaction occurs?

Back

A new substance.

Front

What is the term for a substance made of two or more elements chemically combined?

Back

Compound

Front

What is the smallest unit of an element that retains its properties?

Back

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