Understanding Matter and Its Properties

What is the primary focus of chemistry?

• The study of historical events

• The study of celestial bodies

• The study of matter and its properties

• The study of living organisms

Which of the following best describes mass?

• The temperature of an object

• The amount of matter in an object

• The amount of space an object occupies

• The color of an object

How does the volume of a liquid change?

• It remains constant regardless of the container

• It changes with pressure

• It changes with temperature

• It changes with the container

Which state of matter has a fixed shape and volume?

• Liquid

• Gas

• Solid

• Plasma

What happens to the particles in a gas?

• They are fixed in a rigid structure

• They move freely and are not connected

• They are loosely connected and flow past each other

• They are tightly packed and vibrate in place

Which of the following is a physical property of matter?

• Reactivity with acid

• Flammability

• Boiling point

• Ability to rust

What is an example of a physical change?

• Burning wood

• Cooking an egg

• Rusting iron

• Melting ice

What is required to change a solid into a liquid?

• Removing energy

• Adding energy

• Increasing pressure

• Decreasing pressure

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

• Evaporation

• Condensation

• Sublimation

• Deposition

What happens to energy when a liquid turns into a solid?

• Energy is added

• Energy is created

• Energy is lost

• Energy remains constant