U4M14 Lesson 1: Solids, Liquids, and Gases

Drag and Drop

Placeholder

is a substance without a definite shape or volume

Drag these tiles and drop them in the correct blank above

Gas

Solid

Liquid

Temperature

Volume

Solution

Mixture

Mass

Chemical Change

Physical Change

Multiple Choice

Which of the following best describes the arrangement and movement of particles in a solid state?

• Particles are closely packed and vibrate in place.

• Particles are far apart and move freely.

• Particles are loosely packed and slide past each other.

• Particles are stationary and do not move.

Multiple Choice

Which of the following best describes thermal energy in a solid?

• It is the energy that causes particles to vibrate.

• It is the energy that causes particles to stop moving.

• It is the energy that gives solids their color.

• It is the energy that makes solids melt instantly.

Open Ended

Explain the process of melting and freezing using the example of an ice cube in hot tea. What happens at the molecular level during these changes of state?

Labeling

Apply the correct state of matter

Drag labels to their correct position on the image

Gas

Liquid

Solid

Multiple Select

Which of the following statements about thermal expansion is/are correct?

• Thermal expansion causes substances to increase in size when heated.

• Thermal expansion only occurs in solids.

• Thermal expansion is responsible for cracks in concrete sidewalks.

• Thermal expansion decreases the size of a substance when cooled.

Fill in the Blanks

According to the kinetic theory, all matter is composed of small particles called

, molecules, and ions.

Open Ended

How does the kinetic theory explain the behavior of particles in solids, liquids, and gases?