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

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 substance?

Back

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

Front

What happens during a chemical reaction?

Back

Two substances combine to form one or more new substances.

Front

Can a mixture be easily separated back into its original components?

Back

Yes, a mixture can be separated back into its original components.

Front

What is an example of a mixture?

Back

Trail mix, because the original components can be separated.

Front

What is a compound?

Back

A substance formed when two or more elements are chemically bonded together.

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.

Front

What is an example of a physical change?

Back

Melting ice, where the ice changes shape but remains water.

Front

What is an example of a chemical change?

Back

Burning wood, which creates ash and smoke as new substances.