Chemical and Physical Changes Quiz

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

• A piece of ice melts when placed in a glass of water.

• The paper is torn into pieces.

• A gas is produced when baking soda reacts with vinegar.

• Water evaporates from a puddle.

Tags

NGSS.MS-PS1-2

Which of the following is a physical change?

• Burning wood

• Dissolving sugar in water

• Rusting of iron

• Baking a cake

Which of the following best describes a chemical change in matter?

• The substance changes its appearance but remains the same substance.

• A new substance is formed with different properties.

• The substance changes state, such as from a solid to a liquid.

• The substance is heated and changes color without forming a new substance.

Tags

NGSS.MS-PS1-2

When a piece of wood is burned, which of the following occurs?

• A new substance is formed, indicating a chemical change.

• The wood turns into a liquid, indicating a physical change.

• The wood changes shape but remains the same substance.

• The wood dissolves into water, indicating a chemical change.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following processes is a chemical change?

• Ice melting into water

• Water freezing into ice

• Wood burning in a fire

• Sugar dissolving in tea

Tags

NGSS.MS-PS1-2

When salt is dissolved in water, which type of change is observed?

• Physical change because the salt can be recovered by evaporating the water.

• Chemical change because the salt forms a new substance with the water.

• Physical change because the salt reacts with the water.

• Chemical change because a new solution is created.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

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

• A log burning in a fireplace

• A nail rusting in the rain

• A paper being shredded into small pieces.

• Baking bread in the oven

Which of the following is a clue that a chemical change has occurred?

• The substance changes shape.

• The substance absorbs heat from the surroundings.

• The substance dissolves in water.

• The substance changes its state, such as from liquid to solid.

Tags

NGSS.MS-PS1-2

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

• A precipitate forms.

• A color change occurs.

• A new substance with different properties is formed.

• The substance changes state from solid to liquid.

Tags

NGSS.MS-PS1-2

When a metal reacts with an acid, it produces gas. Which type of change is this?

• Physical change because the metal changes shape.

• Chemical change because a new substance (gas) is produced.

• Physical change because gas is produced.

• Chemical change because the acid dissolves the metal.

Tags

NGSS.MS-PS1-2