Sci Week 11.10.25 M2L5,6 Phase Changes, Physical Changes

Science Module 2 Lessons 5 and 6

Phase Changes Physical Changes

November 12, 2025

You may need these items

• empty water bottle
• balloon
• ice water

• hot water (LC supervision)
• large bowl

Agenda

• Phase Changes
• Phase Change Demo
• Physical Changes
• Identification

I Can

• define temperature
• describe what happens to a material when it changes its state.
• give examples of changes in states of matter.
• understand physical changes.

Demonstration Time

You may need these items

• empty water bottle
• balloon
• ice water

• hot water (LC supervision)
• large bowl

You may follow along (with the help of your LC) or you may observe.

Question to think about:

What causes this change in the gas in the bottle/balloon?

Review

I Can: -define Matter and its states

What is Matter?

Properties of Matter:-mass -volume -density

Almost everything is made of matter!

Matter is anything that takes up space.

Matter can be natural or man-made.

YOU MATTER!

Let's Classify Matter!

Drag and Drop the Images into the correct State of Matter!

Solid

Liquid

Gas

Check Your Answers Here

Let's Classify Matter!

Drag and Drop the Images into the correct State of Matter!

Solid

Liquid

Gas

States of Matter

Matter exists in three main states: solid, liquid, and gas.

Changes of state are physical changes, they do not change the chemical composition of the substance.

Examples of phase changes include melting, freezing, evaporation, and condensation.

Phase Changes

Phase changes occur when matter transitions from one state to another.

Melting, freezing, vaporization, condensation, sublimation, and deposition are the six common phase changes.

Energy is either released or absorbed during these phase changes.

Check out how Water goes through Phase Changes!

CHANGES IN STATE

Changes in state refer to the physical changes that matter undergoes when it transitions from one state (solid, liquid, or gas) to another.

Due to changes in TEMPERATURE and PRESSURE

Changes in State

Evaporation

Melting

Freezing

Freezing is the process by which a liquid is cooled and transformed into a solid. This occurs when the temperature of the material reaches its freezing point.

Evaporation is the process by which a liquid is heated and transformed into a gas. This occurs when the temperature of the material reaches its boiling point.

Melting is the process by which a solid is heated and transformed into a liquid. This occurs when the temperature of the material reaches its melting point.

Changes in State

Condensation

Sublimation

Deposition

Sublimation is the process of a solid turning directly into a gas without first becoming a liquid.

Deposition is the opposite of sublimation, where a gas turns directly into a solid without first becoming a liquid.

Condensation is the process by which a gas is cooled and transformed into a liquid. This occurs when the temperature of the material reaches its condensation point.

Question to think about:

What causes this change in the gas in the bottle/balloon? What kind of change happened here?

The increase/decrease of heat causes the change in the gas. This is a physical change.

Phase Changes Demonstration Video

Simulation Time!

1. Visit the States of Matter and observe the molecular arrangement in solids, liquids, and gases.

1. Adjust the temperature to demonstrate the processes of melting, freezing, evaporation, condensation, sublimation, and deposition through phase changes.

1. Additionally, adjust the pressure, change the types of atoms, and explore the interactions section!oms, and explore the interactions section!

Phase ChangesPhysical Changes

Agenda

• Phase Changes
• Phase Change Demo
• Physical Changes
• Identification

November 13, 2025

Items Needed

• Classkick

OPTIONAL:

• paper clip
• penny
• spoon (metal)
• spoon (plastic)

• rubber band
• paper

• hot water
• cup

I Can

• define physical properties of matter.
• identify and describe common physical properties (color, texture, hardness, flexibility, luster, solubility, magnetism, conductivity).
• classify materials by their observable properties.

Review

Most Common Phase Changes

Gas

What are the phase changes?

Liquid

Solid

Check Your Answers Here

Review

Most Common Phase Changes

Gas

Condensation

Evaporation

Liquid

Melting

Freezing

Solid

Demonstration Time

Optional:

• cup

• hot water (LC supervision)
• metal spoon
• plastic spoon

You may follow along (with the help of your LC) or you may observe.

Question to think about:

What do you notice?

Why do you think the metal and plastic spoons behave differently?

All matter has physical properties — features we can observe or measure without changing what the matter is.

Question to think about:

Why do you think the metal and plastic spoons behave differently?

Physical Properties of Matter

Properties that can be measured or observed without the matter changing into a different substance.

Density

Appearance

Volume

Melting Point

Solubility

Boiling Point

Mass

Physical Properties Sort

Drag and Drop the Images into the correct Physical Property!

Texture

Rough

Soft

Smooth

Physical Properties Sort

Drag and Drop the Images into the correct Physical Property!

Flexibility

Rigid

Flexible

Physical Properties Sort

Drag and Drop the Images into the correct Physical Property!

Luster (Shininess)

Shiny

Dull

Physical Properties Sort

Drag and Drop the Images into the correct Physical Property!

Magnetism

Not Magnetic

Magnetic

Physical Properties

Choose an object and write down 2-4 physical properties about it.

Physical Properties

Object

Physical Changes

Changes that occur when matter changes state.-change in energy within the matter -can be undone -does not change what the substance is -no new substance is formed

Chopping wood

Making sugar water

Boiling water

Question to think about:

Is making a popsicle a physical change?

Pressure

Pressure in the atmosphere, Earth, and laboratory can also change the state of matter.

TEMPERATURE

Temperature is the measurement that tells how hot ot cold a material is. When a material's temperature changes, its state may change.