1. September 13, 2018
Warm-Up: Complete the Prior Knowledge Questions on the activity sheet
Take out the BrainPop quiz warm-up from Tuesday
HOMEWORK: Review for quiz. Read chapters 2 & 3 in textbook. USA Test Prep due tomorrow.

2. Quiz
Know that physical and chemical properties are characteristic properties that can be used to identify a pure substance
Physical properties can be observed without changing the substance’s identity
Physical properties include color, texture, state, shape, size, density, melting/freezing points, boiling/condensation points, conductivity, and magnetism
Chemical properties are observed by changing the substance
Chemical properties include flammability and reactivity
Density is mass/volume

3. Chemical Properties
Describe matter based on its ability to change into new and different matter with new and different properties
These can be used to help identify a substance

4. Key Chemical Properties
Reactivity – the ability to form a new substance with one or more other substances
Example: iron’s ability to rust
Flammability – the ability to burn
Example: paper’s ability to burn

5. Chemical Change
Two or more substances combine and change into a new substance with different properties
The atoms and molecules rearrange
Examples:
Iron + Oxygen = Iron Oxide (rust)
Baking Soda + Vinegar = Carbon Dioxide
Sodium + Chlorine = Sodium Chloride (salt)

6. Signs of a Possible Chemical Change
Bubbles & Fizzing
New odors
Color change
Light and/or heat produced

7. Physical and Chemical Changes
Often reversible
Substances stay the same chemically
Includes changes of state, changes of shape, and dissolving
Chemical:
Rarely reversible
New and different chemicals produced
Includes burning and chemical reactions

8. Stations Stay with your group Record you observations
Decide whether you observed something PHYSICAL or CHEMICAL
Decide whether you observed a PROPERTY or CHANGE
Wear your goggles

9. September 13, 2018 Warm-Up: Complete worksheet
Take out GIZMO for turn in (if not given to me yesterday)
Make sure you have answered the questions
Put answers into i-Respond for assessment (each table has two class sets) if you and your partner didn’t finish with an 80 or better
Take out Brainpop quiz sheet from Tuesday for review
HOMEWORK: Read chapter 16, sections 1 & 2, and complete USA Test Prep by Friday – TOMORROW!