1.5 States of Matter

• What is matter defined as?

  Anything with mass and space
• What is the shape of a liquid in relation to its container?

  Takes the shape
• Order the following phase changes based on increasing energy absorption:

  1️⃣ Freezing

  2️⃣ Condensation

  3️⃣ Deposition

  4️⃣ Melting

  5️⃣ Evaporation

  6️⃣ Sublimation
• Temperature and pressure are two factors affecting state transitions
• Match the state of matter with its compressibility:

  Solid ↔️ Very low

  Liquid ↔️ Low

  Gas ↔️ High
• Which state of matter takes the shape of its container but has a fixed volume?

  Liquid
• Matter exists in only three states: solid, liquid, and gas.


  True
• What is the density and compressibility of a liquid?

  Medium density, low compressibility
• What is the shape of a gas in relation to its container?

  Fills the entire container
• Which state of matter has the lowest density?

  Gas
• A gas can be compressed easily due to its high compressibility.


  True
• A solid has a fixed shape and fixed volume
• Solids have high compressibility.

  False
• Liquids take the shape of their container
• Gases have a fixed volume.

  False
• Liquids have medium density and low compressibility.


  True
• Arrange the states of matter from highest to lowest density:

  1️⃣ Solid

  2️⃣ Liquid

  3️⃣ Gas
• What is the shape of a gas in a container?

  Fills the container
• Why do solids have high density?

  Molecules are tightly packed
• Gases expand to fill their entire container.


  True
• What are the density and compressibility of solids?

  High density, very low compressibility
• What is the density of gases compared to solids and liquids?

  Low
• Match the state of matter with its density:

  Solid ↔️ High

  Liquid ↔️ Medium

  Gas ↔️ Low
• What is the compressibility of liquids?

  Low
• Match the phase change process with its description:

  Melting ↔️ Solid to liquid

  Freezing ↔️ Liquid to solid

  Evaporation ↔️ Liquid to gas
• Order the phase changes from solid to gas:

  1️⃣ Melting

  2️⃣ Evaporation

  3️⃣ Sublimation
• What is deposition?

  Gas turns directly into solid
• Matter is anything that has mass and takes up space.


  True
• Solids have a fixed shape and volume
• Gases have a fixed volume.

  False
• What is a key characteristic of solids?

  Fixed shape
• Solids have a fixed shape and volume.


  True
• Gases have a fixed volume.

  False
• Liquids take the shape of their container
• What is the main difference between solids and liquids in terms of shape?

  Fixed vs. adaptable
• Gases are highly compressible.


  True
• Match the property with the correct state of matter:

  Fixed shape ↔️ Solid

  Fixed volume ↔️ Liquid

  Low density ↔️ Gas
• Order the phase changes by their starting and ending states:

  1️⃣ Melting (Solid to Liquid)

  2️⃣ Freezing (Liquid to Solid)

  3️⃣ Evaporation (Liquid to Gas)

  4️⃣ Condensation (Gas to Liquid)

  5️⃣ Sublimation (Solid to Gas)

  6️⃣ Deposition (Gas to Solid)
• The transition from solid to liquid state is called melting
• What is an example of melting?

  Ice melting into liquid water