2. Imagine for Design #1
Idea # 1
Our materials are we used cotton for one side. We also used
newspaper for the bottom . And we also used light cloth to put it
on one side.
We need 3 units.
The advantage of this idea is it will warm up a little bit faster. And
they are not going to hurt the environment.
The disadvantage of this idea is that it will probably burn to much.
Monday, May 20, 13
3. Imagine for Design # 1
Idea # 2
Our material we are going to used foam in the bottom.
And will used the cotton to the sides of the box.
We need 3 units.
The advantage of this idea it's going to cook faster.
The disadvantage of this idea it does not help the
environment.
Monday, May 20, 13
6. Plan for Design #1
Material Units
We will use the
material by
Cotton 1
We are going to
put it on the side
flat.
White Cloth 1
We are going to
put it on the side
flat.
Newspaper 1
We put the
newspaper on the
bottom.
Monday, May 20, 13
7. Impact Score for Design #1
Design
1
Reduce
Natural
Or
Processed
Reuse Recycle
Add
points
Cotton
Unit 1
1 unit Processed No No 4 points
White
Cloth
1 unit
1 unit Processed Yes No 2 points
Newspaper
Unit1 1 unit Processed Yes Yes 0 points
Our total impact score is 6 points.
Monday, May 20, 13
8. Solar Oven Testing in the Sun
Time Temperature
0 minutes 25 °c
5 minutes 44.7 °c
10 minutes 46.3°c
15 minutes 49.4°c
20 minutes 59.7°c
25 minutes 54.9°c
Monday, May 20, 13
9. Solar Oven Testing in the Shade
Time ( minutes) Solar Oven Temperature
1 36.9°c
2 36.3°c
3 34.0°c
4 33.1°c
5 32.3°c
6 31.0°c
7
8
9
10
Monday, May 20, 13
10. Create for Design #1
Our heat score is our solar oven maximum temperature
subtracted from the control oven: 60°c -55 = 5
Our time score is the number of minutes it took to
cool down which was 3 minutes.
Our total impact score was 6 points.
Our total score for the solar oven is 2.
Monday, May 20, 13
11. Improve for Design #1
The total score for our first solar oven was 2.
The parts of our solar oven design that work well were the cotton and
the cloth because helped a little to heat it up faster.
The parts of our solar oven design that did not work well were the
newspaper because did not worked well for the project.
We are going to try to improve our Heat Score Time Score Impact Score.
We will improve our Heat Score Time ScoreImpact Score by using
different materials like dark cloth , foam and cotton because it will help
get a high score.
Monday, May 20, 13
14. Plan for Design #2
Materials Units
How will you use
the materials?
Cotton 2 units
We are going to
put it on the two
side of the box.
Foam 1 unit
We are going to
put it on the
bottom of the
box.
Monday, May 20, 13
15. Impact Score for Design #2
Design
#2
Reduce
Natural
or
processed
Reuse Recycle
Total
points
Cotton 2 units Processed No No 7 points
Foam 1 unit Processed No No 4 points
11 points in total
Monday, May 20, 13
16. Solar Oven Testing in Sun
Time Temperature
0 minutes 24.4°c
5 minutes 41.2°c
10 minutes 42.0°c
15 minutes 44.0°c
20 minutes 50.2°c
25 minutes 52.1°c
30 minutes 47.9°c
Monday, May 20, 13
17. Solar Oven Testing in Shade
Time Temperature
1 minute 40.6°c
2 minute 34.5°c
3 minute 31.1°c
4 minute 29.9°c
5 minute 28.5°c
6 minute 28.1°c
7 minute 27.6°c
8 minutes 27.1°c
9 minutes 27.0°c
10 minutes 27.0°c
Monday, May 20, 13
18. Create for Design #2
Our heat score is our solar oven maximum temperature
subtracted from the control oven: 52-53=-1
Our time score is the number of minutes it took to cool
down which was 3 minutes.
Our total impact score was 11 points.
Our new total score for the solar oven is -1+3=-9
Monday, May 20, 13
19. Reflection
Our improve design did not work well because we didn't have a
good insulator. The materials we changed were cloth & the
newspaper. The materials were poor insulator because the cloth
it was to light for the project and it didn't warm up so the cloth
needed to be darker.
If we could improve again, we would change the materials
because the materials were bad insulators or maybe because the
ruler felt a lot of times which closed our box.
In the first design the highest temperature was 59.7°c and the
second time with our improved design we got 52.1°c.
Monday, May 20, 13
