8th Grade Matter Review

Front

What is a heterogeneous mixture?

Back

A mixture where the different parts can be seen and easily separated, like a salad.

Front

What is a chemical change?

Back

A change that produces one or more new substances, such as rusting iron.

Front

What is a period on the periodic table?

Back

A horizontal row of elements.

Front

What is a physical change?

Back

A change that does not produce a new substance, such as melting ice.

Front

What are atoms?

Back

The extremely small particles that make up all elements.

Front

What is a homogeneous mixture?

Back

A mixture that is uniform in composition, such as saltwater.

Front

What is a solution?

Back

A homogeneous mixture where one substance is dissolved in another.

Front

What is the difference between a compound and a mixture?

Back

A compound is a substance formed when two or more elements chemically bond, while a mixture is a combination of two or more substances that retain their individual properties.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means.