Understanding Changes in Matter

Melting butter is an example of _____.

• Physical change

• Chemical change

Choose all examples of physical change. (Select all that apply)

• Cutting your hair

• Burning paper to form ash

• Baking soda reacts with vinegar and form gas

• Melting ice cube

Which of the following is an example of chemical change?

• Boiling water

• Rusting iron

• Tearing papers

Which are signs that a chemical change has taken place? (Select all that apply)

• Change in mass

• Formation of a gas

• Formation of a mixture

• Change in temperature

________ gives new substance that has properties different than the properties of original matter.

• Physical change

• Chemical change

In which state of matter the particles are very far from each other?

• Liquid

• Solid

• Gas

The following picture shows ________ process.

• Melting

• Freezing

• Evaporation

Which state of matter doesn't have definite shape but has definite volume?

• Solid

• Liquid

• Gas

In __________, the particles are tightly packed together and vibrate in place.

• Liquid

• Solid

• Gas

The change from gas to liquid is called __________.

• Freezing

• Condensation

• Evaporation