2. prevents energy transfer (thermal, electricity, sound)
Jan 1 / Act D 60
Ice Preserving Contest
LEARNING TARGET: I can identify methods to minimize thermal energy transfer.
CH Q
How can you insulate an ice cube?
VOCAB:
Insulation / Insulator
prevents energy transfer (thermal, electricity, sound)

3. PROCEDURE AND DATA
MATERIALS:
PROCEDURE: Read on pg. D40 and summarize
DATA: Notes in Journal
Pre-Lab Thought:
What would be the best method for insulating?

4. We need write our experiment:
Hypothesis or claim:
If I (manipulated variable) ,then the ice will melt faster (responding variable) because I have added more energy than the control.
List the variables: MV, RV, CV
List materials: One baggie, one cup, graduated cylinder, one ice cube, (manipulated variable)
Procedure: Write the detailed and numbered description of what you are going to do to melt your ice cube and how to measure your results

5. ICE-MELTING RULES
No commercial coolers or thermoses allowed.
Keep the ice and the bag on the table until directed by the teacher to start the contest
Disqualified if any water leaks out of your bag.
10 min to design/build insulators
~20 min wait time with ice in insulator
Cups will be placed on counters

6. READ AND THINK
While waiting:
Read pgs. D 42-44
Think it Over Q 1-3 pg. D 45 Silently Answer in Journal
After ~20 min collect results from experiment.
Record the exact process you did to set up your insulator.
Record final melted water (mL)

8. POST DISCUSSION
Discuss and list all the variables that affected how fast the ice melted.
If you did this next time, what would you change?
room/outside temp
how "fluffy" insulation is
how much insulation
How can an insulator or a conductor help make a house more energy efficient?
- insulator (keep thermal energy in or out of house)
- conductor (move thermal energy more efficiently)

9. Rank the four houses from BEST (1) to WORST (4) for insulation effectiveness – why?:2 1 4 3

10. ANALYSIS
- Discuss and answer Q 2 on pg.D 41
ANS CH Q
How can you insulate an ice cube? A:
use lots of "fluffy" insulation
HOMEWORK
Catch up on Journals – Complete Analysis Q’s