Mixing Substances

Front

What is a physical change?

Back

A change in the shape or appearance of an object, but a new substance does not form.

Front

Can substances be combined to form physical or chemical changes?

Back

True

Front

What is a substance?

Back

Matter with the same composition and properties throughout. This is also defined as a compound.

Front

Is trail mix a mixture?

Back

Yes, trail mix is a mixture because the original components can be separated.

Front

What occurs during a chemical reaction?

Back

A chemical reaction occurs when two substances combine to form one or more new substances.

Front

What is a mixture?

Back

A combination of two or more substances where each substance retains its original properties; they are not chemically bound together.

Front

What is a chemical change?

Back

A process in which one or more substances combine to form one or more new substances.

Front

What is an example of a physical change?

Back

Melting ice is an example of a physical change.

Front

What is an example of a chemical change?

Back

Burning wood is an example of a chemical change.

Front

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

Back

A physical change does not create a new substance, while a chemical change does.