1. Tuesday, September 18, 2017 Agenda: Review Test Begin Rotation Lab
Needed Supplies:
Pencil
Notebook
Binder
Agenda
Agenda:
Review Test
Begin Rotation Lab
Be an
INQUIRER
Today!
Bell Work
What do you think is a physical change? Chemical change?
NO Gum Please
Learning Objective:
Students will begin to explore physical and chemical changes of matter

2. Watch It!! Physical and Chemical Changes
Watch It # 2 – What subatomic particle is specifically responsible for combining the atoms together to form a new substance?
Watch It # 3 – List 3 demonstrations from the video that showed evidence of chemical change.
Watch It # 4 – Explain what a chemical reaction is.

3. Safety First Goggles need to be worn until I tell you to take them off
Sleeves need to be rolled up or take hoodies off
Long Hair needs to be tied back – If not, you may NOT be the group member to light and hold the match

4. Explore It!! Explore It # 1 –
Fill the graduated cylinder up with 20 mL of water.
Take ONE effervescence tablet and break it up so that it will fit into the graduated cylinder.
On you lab sheet write your observations.

5. Explore It!! Explore It # 2 –
You just experienced a chemical change or chemical reaction. A chemical change happens when atoms are rearranged to create a new substance.
The bubbles, or production of a gas, happens when baking soda (sodium bicarbonate) and citric acid from the tablet react chemically in the water.
They create sodium citrate, water, and carbon dioxide gas, which causes bubbles. As you can see a new substances were formed.

6. Explore It!! Explore It # 3 –
Next, one person from the group carefully light a match and blow it out before it burns your fingers.
On your lab sheet write your observations about what happened to the matchstick.

7. Explore It!! Explore It # 4 –
Burning or explosions are also evidence that a chemical change has taken place.
The phosphorus and sulfur on the tip of the match are burned up during the chemical reaction and create light and heat energy.

8. Students will begin to explore physical and chemical changes of matter
Tuesday, September 19, 2017
Needed Supplies:
Pencil
Notebook
Binder
Agenda
Rotation Lab
Agenda:
Rotation Lab
Be an
INQUIRER
Today!
Bell Work:
What pieces of evidence do you remember from yesterday that indicates a chemical change?
NO Gum Please
Learning Objective:
Students will begin to explore physical and chemical changes of matter

9. Explore It!! Explore It # 5 –
There are 3 other pieces of evidence that prove a chemical change or chemical reaction has taken place.
The 3rd example is called a precipitate. When two liquids are combined together, but a solid is produced that solid is called a precipitate.
Lead Iodide Precipitating

10. Explore It!! Explore It # 6 –
The 4th piece of evidence is an unexpected temperature change. Often times heat is released when elements ore compounds are combined. This change is temperature proves a chemical reaction occurred.

11. Explore It!! Explore It # 6 –
The 5th piece of evidence is an unexpected color change occurs when two chemicals are combined. This is evidence if a chemical change. Rust is one example of an unexpected chemical change.

12. Explore It!! Explore It # 7 –
On your lab sheet list the 5 pieces of evidence that prove a chemical change or chemical reaction has occurred.

13. Rotation Lab - order Do these After Illustrate it Organize it
Do these last in this order
Write it
Assess it
Do these first in any order
Read it
Watch it
Research it
Explore it

14. Wednesday, September 20, 2017 Agenda: Notes Learning Objective:
Needed Supplies:
Pencil
Notebook
Binder
Agenda
Agenda:
Notes
Bell Work:
Explain what a precipitate is? Be
knowledgeable
Today!
NO Gum Please
Learning Objective:
Students will begin to explore physical and chemical changes of matter

15. CHANGES IN MATTER

16. What are properties? Think of your favorite food.
How would you describe your food?
What does it look like? Smell like? Think of descriptive words.

17. Properties of Matter
There are two basic types of properties that we can associate with matter.
Physical Properties: Properties that do not change the chemical nature of matter
Chemical Properties: Properties that do change the chemical nature of matter

18. Physical Properties Some ways to detect physical properties
Color
Shape
Size
Texture
Volume
Mass
Physical properties do not change the substance
Example – stretching a rubber band

19. Physical Change
Change in any physical property of a substance, not in the substance itself.
Examples
Breaking a piece of clay in half
Changes size and shape only
Change in a substances state of matter
Example – water and ice – liquid to solid

20. Chemical Properties
Characteristic of a Substance that describes how it can form a new substance
Examples
Wood burns and turns into ashes
iron rusts when left outdoors
Silver develops tarnish on the surface

21. Chemical Change The change of one substance into another substance
Affects the substances involved in the change
During change, combinations of atoms in the original substance is rearranged to make new substance

22. Signs of a Chemical Change
Odor
Produce new smell – i.e. rotten egg – produces sulfur smell
Temperature
Increase or decrease
Color
Change in color – i.e. fruit changes color as it ripens
Bubbles
Formation of gas bubbles – i.e. antacid tablet in water
Solid
Forms a solid – two liquids combined called precipitate
i.e. – clams shells – seawater combining with creature

23. Demonstration
Changes in Matter

24. Thursday, September 21, 2017 Agenda: Notes Learning Objective:
Needed Supplies:
Pencil
Notebook
Binder
Agenda
Agenda:
Notes
Bell Work:
Name 2 chemical changes. Name 2 physical changes. Be
knowledgeable
Today!
NO Gum Please
Learning Objective:
Students will begin to explore physical and chemical changes of matter

25. Chemical Change Review

26. Precipitate Review
Precipitate Example

27. CHANGES IN MATTER
Matter will change phases when heat is added or lost.
Melting: process where a solid becomes a liquid (heat is added)
Melting point – lowest temperature at which a substance begins to melt
Freezing: process which a liquid becomes a solid (heat is lost)
Freezing point – temperature that a liquid becomes a solid
Evaporation: process that a liquid becomes a gas (heat is added)
Occurs at the surface of the liquid

28. CHANGES IN MATTER
Matter will change phases when heat is added or lost.
Sublimation: when a solid changes to a gas (heat is added)
Dry ice
Boiling: Process that a liquid becomes a gas (heat is added)
Boiling Point – liquid reaches a certain temperature. Different substances have different boiling points
Condensation: process by which a gas changes to a liquid (heat is added)
Beads of water on glass

29. Friday, September 22, 2017 Agenda: Notes Learning Objective:
Needed Supplies:
Pencil
Notebook
Binder
Agenda
Agenda:
Notes
Bell Work:
What is sublimation? Is heat added or lost? Be
knowledgeable
Today!
NO Gum Please
Learning Objective:
Students will begin to explore physical and chemical changes of matter

30. CHANGES IN MATTER Boiling - Evaporation Condensation Freezing Melting
Gas
Boiling - Evaporation
Condensation
Liquid
Freezing
Melting
Solid

31. Properties used to identify substances
Density
Compare density to other substances
Heating properties
Substances respond to heat differently
Solubility
How much does the substance dissolve
Electric properties
Does it conduct electricity
Magnetic properties
Is substance attracted to magnet

32. Evidence of Chemical Changes
Created by Kesler Science – More 5E lessons at KeslerScience.com
Presented by Kesler Science

33. Essential Questions:
How does evidence of chemical reactions indicate that new substances with different properties are formed?

34. Chemical Reaction Chemical Changes
Occurs when two or more molecules interact and the molecules change into a new substance.
Bonds between atoms are broken and created to form new molecules.
Talk about how this is simply the elements bonding, forming new molecules.
© KeslerScience.com

35. Physical Changes Physical Change
Changes the form or appearance of a substance.
Does not change substance into anything new.
Examples
Whipping eggs
Boiling water
Dissolving sugar
Dicing vegetables
© KeslerScience.com

36. Physical Changes Physical Changes Smooth Changing the state of matter
Changing the color
Changing the temperature
Changing the shape
Changing the texture
Smooth
Physical changes are limited to changes that result in a difference in display without changing the composition. Some common changes (but not limited to) are: 
Texture
Color
Temperature
Shape
Change of State (Boiling Point and Melting Point are significant factors in determining this change.)
Physical properties include many other aspects of a substance. The following are (but not limited to) physical properties. 
Luster
Malleability
Ability to be drawn into a thin wire
Density
Viscosity
Solubility
Mass
Volume 
Any change in these physical properties is referred to as a physical change.
© KeslerScience.com

37. Chemical Changes Chemical Change
When two or more substances join to form new substances with new chemical properties.
Examples
Iron rusting
Gas burning
Eggs cooking
Bread rising
Help student understand that when a chemical reaction occurs what they see is the chemical change.
© KeslerScience.com

38. Unexpected Color Change
Chemical Changes
Unexpected Color Change
New molecules created in a chemical reaction radiate light differently producing new colors.
Examples:
Fireworks
Leaves a change color
© KeslerScience.com

39. Chemical Changes Unexpected Temperature Change
During chemical bonding, energy is released or absorbed making their surroundings hotter or cooler.
Examples:
Adding salt to ice lowers its freezing point.
Body temperature changes to fight infections.
© KeslerScience.com

40. Chemical Changes Combustion/Burning
A chemical reaction between substances, usually including oxygen accompanied by giving off heat and or light.
This is a permanent change that cannot be undone.
Examples:
Wood burning
Candle
Rusting
© KeslerScience.com

41. Chemical Changes Precipitates Form
When a solid suddenly appears in a solution and settles to the bottom, collects on another object, or makes the solution cloudy.
Examples:
Milk souring
Bath tub rings
© KeslerScience.com

42. Chemical Changes Bubbles Form
When gases produced in a chemical reaction are released.
Examples:
Alka-Seltzer
Bubbles in sodas
© KeslerScience.com

43. Check for Understanding
Can you…
Investigate how evidence of chemical reactions indicate that new substances with different properties are formed?
Clear up any confusion and answer questions.
© KeslerScience.com

44. PHYSICAL/CHEMICAL ACTIVITY-DUE MONDAY
Fold paper hot dog style in half
Top heading write “Chemical Changes”
Bottom heading write “Physical Changes”
DRAW AND LABEL 5 examples for each section-10 total ASSESSMENT PTS
Need colored examples!
If not complete in class DUE MONDAY!!!