1. Unit One: Interactions of Matter
Properties of Matter
Unit One: Interactions of Matter

2. What is Matter?
Matter is the material or “stuff” everything is made of. What are you doing if you are observing matter? Observing matter means to carefully explore all of its properties. What are two properties that all matter share? All matter has mass and takes up space. What are the three states of matter? solid, liquid, and gas

3. What physical properties do all solids have in common?
The particles in solids are close together and vibrate in place. For this reason:
A solid has its own definite shape and definite volume.
A solid keeps its shape even when it moves.
Have students name some solids they can see in the classroom. Then ask what properties they all have in common?

4. What physical properties do all liquids have in common?
The particles in liquids are not as close together as the particles in solids and move more freely than particles of solids. For this reason:
Liquids have a definite volume.
Liquids take the shape of their container.
Liquids can be poured from one container to another.

5. What physical properties do all gases have in common?
The particles in gases move freely in all directions For this reason:
Gases have no definite size or shape.
A gas take the shape of its container.
A gas will fill all the space inside a container.

6. Observing and Measuring Matter Center
Choose an Object to Observe
Choose an Observation Type
List as many properties as you can about that object.
What are all the things you observe directly about….?
Describe how this object looks, feels, sounds, and/or smells.
Thumb Pencil Book Desk Notebook Sheet of Paper Window Door Computer
Explore: Center Activity

7. Properties of Matter

8. What is a Physical Property?
A physical property can be measured to describe matter without changing the object

9. What are some physical properties of matter?
Color
Odor
Luster - How shiny a substance is.
Malleability - The ability of a substance to be beaten into thin sheets.
Ductility - The ability of a substance to be drawn into thin wires.
Conductivity - The ability of a substance to allow the flow of energy or electricity.
Hardness 
Melting/Freezing Point 
Boiling Point 
Density – Mass divided by Volume (D=M/V)
Mass - The amount of matter in a object.
Weight 
Volume - The amount of space a substance occupies.
Length
Solubility – The ability of a substance to dissolve in a liquid
Click on the hyperlink: What are some Properties or characteristics of Matter for Study Jams Matter video.

10. What is a Chemical Property?
A chemical property is a characteristic that is exhibited as one substance is chemically transformed into another

11. What are some examples of chemical properties?
Flammability - How easily something will burn or ignite
Toxicity - How much a substance can damage an animal, plant, cell, organ, or other organism
Half-life – The amount of time it will take for half of the original substance to decay.
Reactivity with water (combustion, rusting, etc.)
pH – How acidic or basic a substance is

12. Mystery Matter Pick a small object that will fit in a paper bag.
Make quantitative observations (mass, length, height, volume…)
Make qualitative observations (texture, luster, flexibility, magnetic …)
Use these observations to write a description including properties that will help others identify this mystery matter.
Share your description with classmates and have them guess what your mystery object is.
Explain/Evaluate

13. Choose a mystery object identified and do the following reflection:
Mystery Matter
Choose a mystery object identified and do the following reflection:
Was there a property that helped you determine the mystery object’s identity easier than other properties? Explain.
Which observations were physical properties?
Which observations were chemical properties?
What are you wondering now?
Evaluate