Chemical vs Physical Changes Quiz

Is this a physical change or chemical change?

• Physical change

• Chemical change

Which of the following is an example of a chemical change?

• Melting ice

• Burning wood

• Dissolving sugar in water

• Breaking a glass

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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

• Chemical changes are reversible, while physical changes are not.

• Chemical changes involve the formation of new substances, while physical changes do not.

• Physical changes involve energy changes, while chemical changes do not.

• Physical changes result in color changes, while chemical changes do not.

Tags

NGSS.MS-PS1-5

Which of the following observations indicates a chemical reaction has occurred?

• A solid melts into a liquid.

• A gas is produced when two substances are mixed.

• A liquid evaporates into a gas.

• A solid is crushed into a powder.

Tags

NGSS.MS-PS1-2

Analyze the following scenario: A piece of iron rusts over time. What type of change is this, and why?

• Physical change, because the iron changes color.

• Chemical change, because rust is a new substance formed.

• Physical change, because the iron remains solid.

• Chemical change, because the iron melts.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is a sign that a chemical reaction has taken place?

• Change in temperature

• Change in shape

• Change in size

• Change in state

Tags

NGSS.MS-PS1-2

Which of the following processes is a physical change?

• Baking a cake

• Rusting of iron

• Freezing of water

• Burning of paper

Tags

NGSS.MS-PS1-4

Analyze the following data: A substance changes color and releases a gas when heated. What type of change is this, and why?

• Physical change, because the substance is heated.

• Chemical change, because new substances are formed.

• Physical change, because the color changes.

• Chemical change, because the substance melts.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is NOT a sign of a chemical reaction?

• Formation of a precipitate

• Change in color

• Change in shape

• Release of gas

Tags

NGSS.MS-PS1-2

Mixing vinegar and baking soda produces bubbles. What type of change takes place?

• Physical change, because the substances are mixed.

• Chemical change, because a gas is produced.

• Physical change, because the mixture is liquid.

• Chemical change, because the substances dissolve.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5