States of Matter and Changes

What is the state of matter characterized by a definite shape and volume?

• Liquid

• Gas

• Plasma

• Solid

Which of the following is a physical change?

• Freezing of water into ice

• Dissolving sugar in water

• Burning wood in a fire

• Melting of ice into water

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

• The chemical composition changes partially.

• The chemical composition changes completely.

• The chemical composition remains unchanged.

• The chemical composition is altered significantly.

Which state of matter has particles that are tightly packed and vibrate in place?

• Solid

• Plasma

• Gas

• Liquid

What is the process called when a solid turns directly into a gas?

• Sublimation

• Condensation

• Melting

• Evaporation

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

• Rust forming on iron

• Sugar dissolving in water

• Ice melting

• Water boiling

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

• Law of Mass Action

• Law of Energy Conservation

• Law of Chemical Equilibrium

• Law of Conservation of Mass

When water boils, what type of change is occurring?

• Chemical change

• Biological change

• Physical change

• Nuclear change

What is the state of matter that has no definite shape but has a definite volume?

• Plasma

• Gas

• Solid

• Liquid

Which of the following best describes a phase transition?

• A change in temperature without altering state.

• A reaction that produces energy without changing matter.

• A transformation between different states of matter.

• A process that only occurs in gases.