Matter Matters

What is matter made up of?

• All matter is made up of small particles called atoms.

• All matter is made up of large molecules called compounds.

• All matter is made up of energy waves.

• All matter is made up of solid forms only.

What are the three states of matter?

• Solid, liquid, and gas.

• Solid, liquid, and plasma.

• Solid, gas, and vapor.

• Liquid, gas, and steam.

What is a molecule?

• A molecule is a single atom.

• A molecule is a group of two or more atoms bonded together.

• A molecule is a type of chemical reaction.

• A molecule is a form of energy.

What is an atom?

• An atom is the smallest unit of matter that retains the properties of an element.

• An atom is a type of molecule that can exist independently.

• An atom is a particle that is larger than a cell.

• An atom is a form of energy that can be converted into matter.

Give an example of a physical change.

• Cutting paper with scissors is a physical change.

• Burning wood is a physical change.

• Dissolving sugar in water is a physical change.

• Rusting of iron is a physical change.

What is a chemical change?

• A change that results in the formation of new chemical substances.

• A change that only affects the physical properties of a substance.

• A change that can be easily reversed.

• A change that occurs only at high temperatures.

What is an example of a chemical change?

• Burning wood is an example of a chemical change.

• Melting ice is an example of a chemical change.

• Boiling water is an example of a chemical change.

• Dissolving sugar in water is an example of a chemical change.

What happens during freezing?

• Freezing occurs when a liquid changes to a solid.

• Freezing occurs when a solid changes to a liquid.

• Freezing occurs when a gas changes to a liquid.

• Freezing occurs when a liquid evaporates into a gas.

What is the difference between physical and chemical changes?

• Physical changes create new substances, while chemical changes do not.

• Physical changes do not create new substances, while chemical changes do.

• Both physical and chemical changes create new substances.

• Physical changes are reversible, while chemical changes are not.

What is condensation?

• The process of a gas changing to a liquid.

• The process of a liquid changing to a gas.

• The process of a solid changing to a liquid.

• The process of a gas changing to a solid.