Grade 6 Chemistry MCQs

What is a chemical reaction?

• A process in which substances change into new substances

• Mixing substances without change

• Melting ice

• Evaporation of water

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

• Change in temperature

• Production of gas

• Change in color

• Freezing of water

Reactants in a chemical reaction are:

• New substances formed

• Substances that start the reaction

• Substances that disappear

• Substances that evaporate

Products in a chemical reaction are:

• The starting substances

• The substances that change

• New substances formed

• Solvents in the reaction

Which of the following dissolves in water?

• Salt

• Oil

• Sand

• Metal

The substance in which another substance dissolves is called the:

• Solvent

• Solute

• Product

• Reactant

Which is an example of a change in state?

• Burning wood

• Melting ice

• Rusting iron

• Dissolving salt in water

A substance that can conduct electricity is:

• Plastic

• Wood

• Copper

• Rubber

When a substance changes from a liquid to a gas, it is called:

• Freezing

• Boiling

• Condensation

• Sublimation

What is an example of a physical change?

• Burning paper

• Rusting metal

• Melting ice

• Cooking an egg