Matter Review

Which of the following would NOT be a physical change?

• freezing water to make ice cubes

• melting gold to make jewelry

• burning gasoline in a lawnmower

• boiling water for soup

• tearing a piece of aluminum foil

Color change is evidence that a chemical change may have occurred.

• True

• False

Two clear liquids are mixed and a yellow color forms is a ___________

• Physical Change

• Chemical Change

Making a peanut, pretzel and cereal is __________________

• solution

• mixture

• physical change

• chemical reaction

Is crushing charcoal into powder a physical or a chemical change ?

• physical change

• chemical change

Baking soda reacts with vinegar and forms a gas is a ______________

• chemical change

• physical change

Bending a metal pole is a ______________ change.

• physical

• chemical

A combination of 2 or more substances that are put together, can be easily separated, and do not make a new substance is a ______________.

• solution

• mixture

Water freezes to produce ice, this means a _____________________ change has taken place.

• Chemical

• Physical

• Mixture

Your friend decides to toast a piece of bread, but leaves it in the toaster too long. The bread is black and the kitchen if full of smoke. This is a __________________ change.

• Physical

• Chemical