1. What happens when ethanol burns?
Your ideas
Your questions
Poster for Lesson 1, Activity 2: Students’ initial ideas about

2. Powers of Ten Atomic-molecular Microscopic Macroscopic Large Scale
To go with Lesson 2: Powers of Ten
nanometer
micrometer
millimeter
Meter
Kilometer
Smaller
10-10
10-9
10-8
10-7
10-6
10-5
10-4
10-3
10-2
10-1
100
101
102
103
104
105
Larger

3. What happens when soda water loses its fizz?
What molecules are carbon atoms in before the change? What other molecules are involved?
Where are atoms moving from?
What molecules are carbon atoms in after the change? What other molecules are involved?
Where are atoms moving to?
Chemical change
Teaser process tool for soda water
Remember: Atoms last forever (so you can rearrange atoms into new molecules, but can’t add or subtract atoms)

4. Date_______ Class Results for Digital Balance and BTB Class __________
Group
Paper Clip
Petri dish
Cup of BTB
Pencil
BTB before
BTB after 1 2 3 4 5 6 7 8
Average

5. Date_______ Class Results for Soda Water Class __________
Group
Start time
End time
Initial mass
Final mass
Change in mass
BTB before
BTB after
Notes 1 2 3 4 5 6 7 8
Average

6. Chemical change Reactants Products
Process Tool for Molecular Models Start by making the molecules and energy units of the reactants and putting them on the reactants side, then rearrange the atoms and energy units to show the products.
Chemical change
Reactants
Products
Remember: Atoms last forever (so you can rearrange atoms into new molecules, but can’t add or subtract atoms)
Energy lasts forever (so you can change forms of energy, but energy units can’t appear or go away)

7. What happens when ethanol burns?
What forms of energy are in the reactants?
What molecules are carbon atoms in before the change? What other molecules are involved?
Where are atoms moving from?
What forms of energy are in the products?
What molecules are carbon atoms in after the change? What other molecules are produced?
Where are atoms moving to?
Teaser process tool for all investigations except soda water
Chemical change
Remember: Atoms last forever (so you can rearrange atoms into new molecules, but can’t add or subtract atoms) Energy lasts forever (so you can change forms of energy, but energy units can’t appear or go away)

8. Date_______ Class Results for Burning Ethanol Class __________
Group
Start time
End time
Initial mass
Final mass
Change in mass
BTB before
BTB after
Notes 1 2 3 4 5 6 7 8
Average