2. IMAGINE FOR DESIGN #1
• Idea#1
• Our materials are dark cloth,felt,and sand.
• We need 1 unit for sand,felt, and dark cloth.
• The advantage of are idea is that we -1 point.
• We don't any disadvantages.
Monday, May 20, 13
3. IMAGINE FOR DESIGN #2
• Idea #2
• Our materials are dark cloth
• We need 3 units of felt
• We can youse the the felt again after we are done with it and
it has a low environmental impact.
Monday, May 20, 13
6. Dark cloth 1
We will use it for
the bottom
Felt 1
We use it for the
sides
Sand 1
We will put it
around the cloth
Monday, May 20, 13
7. IMPACT SCORE FOR DESIGN #1
Design #1 Reduce
natural or
processed
Reuse Recycle
Sand
Felt
Dark
Cloth
1 Natural Yes Yes
1 Processed No No
1 Processed Yes No
Total
1
3
2
6
Monday, May 20, 13
8. SOLAR OVEN TESTING INTHE
SUN
Time Temperature
0 minutes 25°C
5 minutes 49°C
10minuts 49.4°C
15minuts 49.4° C
20minuts 49.4°C
25minuts 49.2°C
Monday, May 20, 13
9. SOLAR OVENTESTING INTHE
SHADE
Time Temperature
1 minutes 49.2°C
2 minutes 49.1°C
3 minutes 49°C
4 minutes 48.9°C
5 minutes 48.9°C
6 minutes 48.9°C
Monday, May 20, 13
10. CREATE FOR DESIGN #1
• Our heat is our solar oven maximum temperature subtract
from the control score:49-55= -6
• Our total impact score is 6
• Can't answer any other questions because I did not collect
correct data
Monday, May 20, 13
11. IMPROVE FOR DESIGN #1
• The total score for our solar oven was -6 points
• The parts of our solar oven that worked well was the flat felt because it
kept the heat in.
• The parts of the solar oven that did not work was the sand because it did
not heat the air and the dark cloth because it didn't help much to keep the
heat.
• We are try to improve we will try to improve all are scores
• We will improve are time score by not messing with the solar oven and we
will improve the heat score by replacing the sand with anther unit of felt.
Monday, May 20, 13
14. PLAN FOR DESIGN #2
Materials Units
How will you
use the
materials
Felt 2
I will hang it on
the sides
Dark cloth 1
I will sheared it
and put it on
the bottom
Monday, May 20, 13
15. PLAN DESIGN FOR #2
Design #2 Reduce
Natural or
processed
Reuse Recycle
Felt
Dark cloth
4 Processed No No
1 Processed Yes Np
+ 7
2 =
9
Monday, May 20, 13
16. SOLAR OVENTESTING INTHE
SUN
Time Tempture
0 minutes 16°C
5 minutes 37°C
10 minutes 37.4°C
15 minutes 39.1°C
20 minutes 42°C
25 minutes 41.6°C
30 minutes 43.2°C
Monday, May 20, 13
18. CREATE FOR DESIGN #2
• Our heat score is our solar oven score maximum temperature
subtracted from the control oven:43–41=2
• Our time score is the number of minutes it took to cool down
witch was 5 minutes.
• Our total impact score was 9 points
• Our new total score for the solar oven is -2
Monday, May 20, 13
19. REFLECTION
• Our improved design worked better because we added more
felt and sheared the cloth. The felt kept more heat in than the
sand and the cloth did not change the heat score when
sheared.We know our design worked because our overall
score increased.
• If we could improve again, we would replace the cloth with
newspaper because it will give us a lower impact score.
Monday, May 20, 13
