Matter: Lesson 9 Quiz

What is a physical change?

• A change in the identity of a material

• A change in size, shape, or state of matter

• A chemical reaction

• A change in color.

Fill in the blank: An example of a physical change is _______.

• Burning wood

• Rusting iron

• Melting ice

• Cooking an egg

What is a chemical change?

• A change where new substances with new properties are formed.

• A change where the substance remains the same.

• A change that only involves physical properties.

• A change that can be easily reversed.

Fill in the blank: An example of a chemical change is ______.

• Melting ice

• Rusting iron

• Breaking glass

• Dissolving sugar

What does the Law of Conservation of Mass state?

• A) Matter can be created or destroyed.

• B) Matter is conserved during physical and chemical changes.

• C) The mass of matter changes during a chemical reaction.

• D) Atoms are destroyed during physical changes.

Fill in the blank: According to the Law of Conservation of Mass, the same amount of matter exists before and after a change, meaning none is _______.

• created

• destroyed

• altered

• increased