Chemical Reactions Quiz

What is a chemical reaction?

• A process that creates new materials

• A type of physical change

• A way to cook food

• A method of cleaning

What are the starting materials in a chemical reaction called?

• Products

• Reactants

• Ingredients

• Substances

What does flammability refer to?

• How a substance changes color

• How easily a substance ignites

• How a substance decays

• How a substance reacts with water

What is combustibility?

• The ability to burn easily

• The ability to dissolve in water

• The ability to freeze

• The ability to change shape

What is biodegradability?

• The ability to ignite

• The ability to mix with other substances

• The ability to decompose

• The ability to change color

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

• Boiling water

• Lighting a candle

• Dissolving sugar in water

• Melting ice

What do you call the new materials formed in a chemical reaction?

• Ingredients

• Products

• Components

• Reactants

Which of the following is NOT a chemical property?

• Reactivity

• Flammability

• Combustibility

• Color

What role do decomposers play in biodegradability?

• They help materials dissolve

• They help materials freeze

• They help materials decompose

• They help materials ignite

What happens when two or more substances combine?

• They evaporate

• They change color

• They form a new substance

• They create a mixture