Properties and Changes of Matter Test

Front

What is a physical change in matter?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition. Example: Melting ice into water.

Front

What is a compound?

Back

A substance formed when two or more elements are chemically combined.

Front

What is a chemical property of matter?

Back

A characteristic that can be observed or measured by changing the substance's identity.

Front

What are physical properties of matter?

Back

Characteristics that can be observed or measured without changing the substance's identity.

Front

What is an atom?

Back

The smallest unit of an element, made up of protons, neutrons, and electrons.

Front

What is a mixture?

Back

A combination of two or more substances that are not chemically bonded.

Front

What is a solution?

Back

A homogeneous mixture where one substance is dissolved in another.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form or appearance of a substance without changing its identity, while a chemical change results in the formation of new substances.

Front

What is an example of a chemical change?

Back

Burning wood into ash.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, matter is neither created nor destroyed; it is conserved.