Grade 9 Science Final Exam Questions

Define chemical change.

Give three examples of a chemical change.

Define chemical reaction.

Define reactant.

Define product.

How many reactants and products can be involved in one chemical reaction?

Is energy needed or released when you break or form a bond during a chemical reaction?

How can you detect the change of heat energy during a chemical reaction?

Give two examples of reactions that involve temperature changes.

What are some examples that provide evidence of a chemical reaction?