Which of the following is a property of solids?

• They take the shape of their container

• They can be compressed easily

• They have a fixed shape and volume

• They flow freely

Why can gases be compressed easily while solids and liquids cannot?

• Gas particles are closer together than solid and liquid particles

• Gas particles are widely spaced

• Solids and liquids have no energy

• Solids and liquids have no space between their particles

What happens to the movement of particles when a substance is heated?

• They move more slowly

• They stop moving

• They move faster and farther apart

• They change into new elements

Which type of energy is measured by temperature?

• Potential energy

• Kinetic energy

• Chemical energy

• Electrical energy

Which of the following statements is TRUE about liquids?

• They have a fixed shape but no definite volume

• They can be compressed easily

• They take the shape of their container but have a fixed volume

• They do not change shape or volume

What happens to the particles in a liquid when it freezes?

• They move faster

• They move apart

• They stop moving completely

• They move closer together and vibrate in place

Which state of matter has particles that move freely and fill their container?

• Solid

• Liquid

• Gas

• Plasma

What two types of energy can particles have?

• Kinetic and potential

• Thermal and chemical

• Mechanical and electrical

• Nuclear and gravitational

Why does a bathtub full of water at 20°C have more thermal energy than a glass of water at 20°C?

• The bathtub has a higher temperature

• The bathtub has more mass and therefore more total energy

• The water in the bathtub is moving faster

• The glass of water contains fewer elements

What happens to gas particles when they are cooled?

• They move faster

• They spread out

• They slow down and come closer together

• They disappear