2. Matter
All matter has 2 types of properties: Physical properties and chemical properties.

3. Melting/Boiling Point Malleability Elasticity
Physical properties
Definition: Can be observed without changing the substance into another substance.
Color
Shape
Odor
Density
Melting/Boiling Point
Malleability
Elasticity

4. Reacts with a base to form water
Chemical properties
Definition: Indicates how a substance reacts with something else; the substance is chemically changed when observing it.
Combustibility
Flammability
Ability to rust
Reacts with a base to form water

5. Examples of chemical properties include:
The ability to burn
Ability to tarnish
Ability to rust
Ability to decompose
Ability to react with other chemicals
Instability
Ability to do acid/base reactions

6. Graphic organizers
Graphic organizers are visual representations of knowledge, concepts or ideas.

7. React with a BASE to form water
Chemical Properties
Flammability
Combustibility
React with a BASE to form water
Ability to rust

8. Chemical Change
When pure substances mix and change into entirely new/different substances.
Color change
Heat or light is given off
Gas Production (not from boiling) (ex: fizzing)
Odor change
Precipitate (e.g. powder) forms
Usually irreversible
Energy Change (usually seen as a temperature change)

9. Heat or light is given off Gas production (not from boiling)
Chemical Change
Color change
Heat or light is given off
Gas production (not from boiling)
Odor change
Precipitate forms (ex: powder)
Usually irreversible
Energy change (raise or lower temp.)

10. Which clue(s) tells you these are chemical changes?
Examples:
1.Bleaching
hair
2.Frying
an egg
3.Fireworks
exploding 1. 2. 3.

11. Physical Properties of substances
Definition: Can be observed without changing the substance into another substance.
Color
Shape
Odor
Density
Melting/Boiling Point
Malleability
Elasticity

12. Melting/Boiling Points
Physical Properties
Color
Malleability
Shape
Elasticity
Odor
Density
Melting/Boiling Points

13. Shape changes (crinkling, tearing) Size changes (crushing, smashing)
Physical Change
Definition: A change in which matter changes form, but does not change composition. (an appearance change only)
Change state (solid, liquid, gas)
Shape changes (crinkling, tearing)
Size changes (crushing, smashing)
No color change (except when dye added)
Dissolving

14. Change in state (solid, liquid, gas)
Physical Change
Change in state (solid, liquid, gas)
Shape changes (crinkling, tearing)
Size changes (crushing, smashing)
Dissolving

15. Which clue(s) tells you these are physical changes?
Examples:
1.Glass
breaking
2.Butter
melting
3.Chopping
wood 1. 2. 3.

17. Check for Understanding
Given the particle diagram to the RIGHT representing four molecules of a substance:
Which particle diagram best represents this same substance after a physical change has taken place? A chemical change?
Hint: How do we know that a chemical change has taken place?

18. Metals vs. Nonmetals Comparison Chart
Shiny
Dull (not shiny)
Malleable/bendable
Brittle/fragile/breakable
Conducts electricity
Not a conductor of electricity
Reacts with acid
No reaction with acid
Usually solid at room temperature
Can be solid, liquid, or gas at room temperature

19. Independent practice

20. Exit Slip
1. Which statement describes a Physical Property that can be used to distinguish between compound A and compound B?
a) A rusts after 10 minutes, and B rust after 30 days
b) A does not corrode in acid, and B does corrode in acid.
c) A takes 30 kilojoules of energy to combust, and B has a takes 100 kilojoules of energy to combust.
d) A is a blue solid, and B is a white solid.

21. Exit Slip
2. Which statement describes a Chemical Property of Sodium?
a) Sodium has a melting point of 97 ⁰C.
b) Solid sodium is white.
c) Sodium combusts when introduced to water.
d) Solid sodium has a crystal lattice structure.

22. Exit Slip
3. The table below depicts the property of matter along with a descriptive characteristic. Which of the following are correctly paired?
Scenario
Property A
Baking soda and vinegar bubble and fizz when combined
Physical B
A solid forms when liquid lithium bromide and liquid silver nitrate mix
Chemical C
A bicycle chain left outside for a year rusted D
The density of water is 1 g/cm3

23. 4. Which of the following rows reflect properties of a metal?
Exit Slip
4. Which of the following rows reflect properties of a metal?
Breaks easily
Reacts with an acid
Dull in appearance
Does not conduct electricity

24. Complete any class activities that were not completed during class.
HOME LEARNING
Complete any class activities that were not completed during class.