Matter and Changes Quiz

Which of the following is an example of a physical change in matter?

• Burning wood into ash

• Boiling water into steam

• Mixing salt and water

• Melting ice into water

Which of the following is an example of a chemical change in matter?

• Burning of wood

• Cutting a piece of paper

• Mixing of salt and water

• Melting of ice

What is an element?

• A substance that can be broken down into simpler substances by physical means.

• A substance that cannot be broken down into simpler substances by chemical means.

• A substance that is composed of only one type of atom.

• A substance that can be broken down into simpler substances by chemical means.

What is a compound?

• A compound is a substance formed by the chemical combination of two or more elements in definite proportions.

• A compound is a substance formed by the chemical combination of two or more elements in indefinite proportions.

• A compound is a substance formed by the chemical combination of two or more elements in random proportions.

• A compound is a substance formed by the physical combination of two or more elements.

Which law states that mass is neither created nor destroyed in a chemical reaction?

• Law of Conservation of Mass

• Law of Mass Creation

• Law of Mass Destruction

• Law of Mass Transformation

What happens to the mass of a closed system during a chemical reaction?

• The mass of a closed system fluctuates during a chemical reaction.

• The mass of a closed system increases during a chemical reaction.

• The mass of a closed system decreases during a chemical reaction.

• The mass of a closed system remains constant during a chemical reaction.

Which of the following is NOT a physical change?

• Crushing a can

• Burning wood

• Boiling water

• Melting ice

Which of the following is NOT a chemical change?

• Mixing salt and water

• Melting ice

• Boiling water

• Burning wood

Which of the following is an example of a physical property of an element?

• Atomic number

• Boiling point

• Density

• Color

Which of the following is an example of a chemical property of an element?

• The color of an element

• The weight of an element

• The ability of iron to rust

• The melting point of an element