1. Different Types of Matter
Grade 2

2. Content Topics Macroscopic Properties of Matter
Reasons for Properties of Matter*
Purposes for Specific Materials
*Not part of standard

3. Macroscopic Properties
How compact the material is
What it looks like
What it feels like
What it does
Conduct electricity
Gets wet

4. Phase
The state (solid, liquid, gas) of the material unless it is heated or cooled.
Solid Liquid Gas

5. Practice Which objects are made of a hard material?
Legos and game controller
What does a hard material feel like?
Solid, can’t push through it
What does a hard material look like?
Can’t see through it

6. Practice How many different shiny materials do we have in the room?
These materials will be reflective
Are there any materials in the room that are usually liquids?
“Usually” means at normal atmospheric temperatures and pressures

7. Reasons for Properties (not included in standard)
Chemical properties cause the physical properties.
Each type of atom and molecule has its own unique properties.
Hydrogen, Oxygen, Water
(Gas, Gas, Liquid)

8. Compounds (not included in standard)
Most of the materials we see are compounds.
Made up of different atoms
Specific structure
Water Molecule
Structure
Open Source Image

9. Trends in Periodic Table (not included in standard)
The properties of the atoms (pure materials) depend primarily on the configurations (patterns) of electrons around the nucleus.
Each element in a column/group on the periodic table has the same electron configuration.
Each periodic table group of elements has similar chemical and physical properties.

10. Precious Metals
In Same Group

11. Trends (not included in standard)
Many of the properties of matter are due to the structure of the molecules that make-up the matter.
Polarity (H2O)
Acid/base ions (H+ and OH-) can be removed
Acetic Acid
Sodium Hydroxide

12. Water (not included in standard)
Water molecules are polar (slightly positive and negative ends). Water molecules are strongly attracted to each other. (surface tension) − +

13. What are some purposes for types of matter?
The purpose is the function of the material.
Movability during an earthquake
Strength against the wind
Noticeable in the dark
Getty Images

14. Some Purposes Texture Color Strength Flexibility Sand paper is rough
Orange is noticeable
Strength
My kite string didn’t break
in the wind
Flexibility
I can bend the index card
into a new shape
named in clarification statement

15. More Purposes Hardness Absorbency Is your bed hard or soft?
Does the paper towel soak up a lot of water?
named in clarification statement

16. Gas in Floating Balloon
Practice
Match common uses and elements
Why are these elements used? What are the properties?
Strength, appearance, compactness, $ value 1
Foil 2
Jewelry 3
Penny 4
Gas in Floating Balloon 5
Fishing Sinkers A
Lead (5) B
Gold (2) C
Helium (4) D
Aluminum (1) E
Copper (3)

17. Building Materials
Materials used to build houses are specific to weather in the area.
Stucco is common in California. Why?
Stucco holds-up well in the Sun
Stone and brick are more common than wood in wet areas. Why?
Stone and brick hold up better than wood in wet areas.
Wood rots when it gets wet.
Why?
Why?

18. Stucco
Brick