1. Popping corn!

2. Why does popcorn pop?

3. What you will be doing today:
Designing your own experiment to find out why popcorn pops
Discovering which has a greater mass, popped or unpopped popcorn kernels

4. Safety Directions Put on safety goggles!
Put long hair up and remove dangling jewelry or baggy jackets.
Do NOT play with the burner
ALWAYS use the hot mits when picking up heated glassware.

5. Lab directions
Look at your data sheet, decide AS A GROUP, what steps are needed to find the answers

6. Step 1 Decide how many kernels to use (Max=25)
Measure the mass of your beaker, oil, and kernels (small amount of oil, just enough to cover the bottom)

7. How will you find the mass of each of these?
How do you find the mass of the only the oil? What about the container you are measuring it in?
What units will we use?

8. Step two Beaker should have kernels and thin layer of oil at bottom.
Place beaker on center of burner.

9. Step 3 Turn burner on medium heat
Do not put your face or hands near he burner or beaker

10. Step 4 Wait of Popcorn to pop!
DO NOT try to put popped popcorn back in the beaker if it pops out

11. Step 5
When all popcorn has popped, or when it begins to burn turn burner off
Use heat mit to remove the beaker from the burner
Place beaker on lab table and do not touch.

12. Step 6
After beaker and popcorn have cooled put any popcorn that popped out back into the beaker
Find the new mass
How will you find the mass of just the popcorn?