2. Imagine for design # 1
Idea # 1
Our materials are cotton , newspaper and white cloth .
We need 3 units .
The advantage of this idea is they are not going to hurt
the environment and it will probably warm up a little
faster .
The disadvantages of this idea is it will burn to much .
Monday, May 20, 13
3. Imagine for design # 1
Idea # 2
Our materials are cotton and foam.
We need 3 units .
The advantages of this idea it's going to cook faster .
The disadvantages of this idea is it will not help the
environment .
Monday, May 20, 13
6. Material Units
We will use the
materials by
Cotton 1
We will put it on
the side flat.
White cloth 1
We will put it on
one side then
another .
Newspaper 1
We will put the
newspaper at the
bottom , flat
Plan for design # 1
Monday, May 20, 13
7. Design
# 1
Reduce
Natural
Or
Processed
Reuse Recycle
Add
Points
Cotton
1 unit
1 unit Processed No No
4
Points
White
Cloth
1 unit
1 unit Processed Yes No 2 Points
News
Paper
1 unit
1 unit Processed Yes Yes 0 Points
Our total impact score is 6 points .
Impact score for design # 1
Monday, May 20, 13
8. Solar oven testing the Sun # 1
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
30 minutes
Monday, May 20, 13
9. Solar oven in the shade # 1
Time ( minutes ) 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 ° c = 5 ° c
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 points .
Monday, May 20, 13
11. Improve for design # 1
The total score for our first solar oven was 2 points .
The parts of our solar oven design that did worked well were cotton
and cloth because it helped it heat faster .
The parts of our solar oven design that did not work well were the
newspaper because it did not helped to heat it faster .
We are going to try to improve our heat , time and impact scores .
We will improve our heat , time and impact 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
Material Units
How will we use
the material ?
Cotton 2 units
We will put it
on each side .
Foam 1 unit
We will put it on
the bottom of
the box flat .
Monday, May 20, 13
15. Impact score for design # 2
Design
# 2
Reduce
Natural
Or
processed
Reuse Recycle
Add
points
Cotton
2 units
4
Points
Processed No No 7 points
Foam
1 unit
1 point Processed No No 4 points
Our total impact score is 11 points .
Monday, May 20, 13
16. Solar Oven Testing in The
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. 1 ° c
25 minutes 52.1 ° c
30 minutes 47.9 ° c
Monday, May 20, 13
17. Solar Oven Testing in The
Shade
Time Temperature
1 minute 40.6 ° c
2 minutes 34.5
3 minutes 31.1 ° c
4 minutes 29.9 ° c
5 minutes 28.5 ° c
6 minutes 28.1° c
7 minutes 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 - 9 .
Monday, May 20, 13
19. Reflection
Our improved design did not work well because it did not have
good insulators . The materials we change were light cloth and
newspaper . The foam was a poor insulator because we did not
place the foam in the right place so it did not warm up quickly.
In the data chart the highest score was 52.1 with our improved
design, but we had the highest temperature of 60 with our first
design.
If we would improve again we would change the materials
because the temperature did not go that high. To get a higher
temperature, we would put our insulators directly in the sun to
heat up.
Monday, May 20, 13
