Ch 04.3: States of Matter

Ch 04.3:
States of Matter

At the end of this lesson, you will be able to:
1. Define state of matter, and list states of matter.

2. Identify state of matter as a physical property of matter.

3. Contrast the three states of matter that are most common on Earth.

Multiple Select

Which of the following are examples of states of matter?

• solid

• liquid

• gas

• plasma

All of them!

state of matter

- different phases in which any given type of matter can exist
- four well-known states of matter: solid, liquid, gas, and plasma
- is a physical property

Categorize

Options (14)

soil

rock

wood

metal

glass

plastic

cooking oil

gasoline

mercury

oxygen

nitrogen

lightning

welding arcs

stars

Categorize each item as an example of a solid, a liquid, or a gas.

solid

liquid

gas

plasma

Discuss: What makes a solid a solid?

- definite shape
- definite volume
- particles that make up a solid are tightly packed and vibrate in place

​

solid

Discuss: What makes a liquid a liquid?

- NO definite shape; takes the shape of its container
- definite volume
- particles that make up a liquid are close together, but can move around and slide over one another

​

liquid

Discuss: What makes a gas a gas?

- NO definte shape; takes the shape of its container
- NO definite volume; fills the volume of its container
- particles that make up a gas are far apart and move quickly

​

gas

- NO definite volume
- NO definite shape
- made up of neutral atoms mixed with freely-moving ions and electrons
- electrically charged

plasma

Multiple Choice

definite shape

• solid

• liquid

• gas

• plasma

Multiple Select

definite volume

• solid

• liquid

• gas

• plasma

Multiple Select

no definite shape

• solid

• liquid

• gas

• plasma

Multiple Choice

electrically charged

• solid

• liquid

• gas

• plasma

Multiple Select

no definite shape

• solid

• liquid

• gas

• plasma

Multiple Choice

particles are tightly packed and vibrate in place

• solid

• liquid

• gas

• plasma

Multiple Choice

particles are close together, but can move around and slide over one another

• solid

• liquid

• gas

• plasma

Multiple Choice

particles are far apart and move quickly

• solid

• liquid

• gas

• plasma

Poll

What do you think?

• liquid

• not a liquid