Matter and Its Changes

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

• Boiling water

• Burning wood

• Mixing salt and water

• Melting ice

What happens to the mass of a substance during a physical change?

• The mass of a substance increases.

• The mass of a substance decreases.

• The mass of a substance remains constant.

• The mass of a substance becomes zero.

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

• Burning wood

• Cutting paper

• Mixing salt and water

• Melting ice

What happens to the composition of a substance during a chemical change?

• The composition of a substance becomes more complex during a chemical change.

• The composition of a substance remains the same during a chemical change.

• The composition of a substance changes during a chemical change.

• The composition of a substance becomes less stable during a chemical change.

Which of the following is a physical property of matter?

• Color

• Smell

• Taste

• Weight

What is the state of matter of water at room temperature?

• plasma

• gas

• liquid

• solid

Which of the following is a mixture?

• Saltwater

• Iron

• Sugar

• Milk

What is a solution?

• A temporary fix that does not fully solve the problem.

• A type of mathematical equation.

• A liquid mixture of two or more substances.

• A means of solving a problem or dealing with a difficult situation.

Which of the following is an example of a heterogeneous mixture?

• Orange juice

• Salad

• Soup

• Milk

What is the process of changing a liquid into a gas called?

• sublimation

• melting

• condensation

• evaporation