2. Imagine design #1
Our materials are Cotten , 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 warm up a little faster .
The disadvantage of this idea is it will burn to much .
Idea #1
Monday, May 20, 13
3. Imagine for design # 1
Idea # 2
The materials that we are going to use is foam and
cotton .
We need 3 units .
The advantages of the idea it is going to cook food faster .
The disadvantages of this idea is it will not help the
environment .
Monday, May 20, 13
6. Plan for design
Materials Units
We will use the
materials for
Cotton 1
We will put it on
one side the
another .
White cloth 1
We will put it on
the other side of
the Cotton .
News paper 1
We will put it on
the bottom .
Monday, May 20, 13
7. Impact score for design#1
Design
#1
Reduce
Natural
or
Processed
Reuse Recycle
Add
points
Cotton 1 units Processed No No 4 points
White
cloth
1 units Processed Yes No 2 points
News
paper
1 units Processed Yes Yes 0 points
Our total impact score is 6 points
Monday, May 20, 13
8. Solar oven testing the sun #1
Time Tempter
0 min. 25°C
5 min. 44.7°C
10 min. 46.3°C
15 min. 49.4°C
20 min. 59.7°C
25 min. 54.9°C
Monday, May 20, 13
9. Solar oven testing in the shade #1
Time min Solar oven temper
1 36.9
2 36.3
3 34
4 33.1
5 32.3
6 31.0
7
8
9
10
Monday, May 20, 13
10. Create design #1
Out heat score is our solar oven maximum temperature
subtracted from the control oven 60°c-55°c=5.
Our time score is the number of minutes it took to cool
down witch was 3 minuets.
Our total impact was 6 points.
Our total score for the solar oven is 2 points
Monday, May 20, 13
11. Improve for design #1
The score for our solar oven was 2 points .
The parts of our solar oven design that did not worked we'll were
cotton and cloth because it helped it heat faster.
The parts of our solar oven design that did not work well were the
news paper because it did not helped to heat it faster.
We are going to try to improve our heat ,time and impact score.
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
Materials Units
How will you use
the matrial
Cotton 2 Sides
Foam 1 Bottom
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 P No No 7
Foam
1unit
1 point P No no 4 points
Monday, May 20, 13
16. Solar oven testing in the sun
Time Tempature
0 min. 24.4°c
5 min. 41.2°c
10 min. 42.0°c
15 min. 44.0°c
20 min. 50.1°c
25 min. 52.1°c
30 min. 47.9°c
Monday, May 20, 13
17. Solar oven testing in the shade
Time Temperature
1 min. 40.6°c
2 min. 34.5°c
3 min. 31.1°c
4 min. 29.9°c
6 min. 28.1°c
7 min. 27.6°c
8 min. 27.1°c
9 min. 27.0°c
1o min. 27.0°c
Monday, May 20, 13
18. Creating 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 witch was 3 minutes
Our tool impact score was 11 points
Out new impact score for the solar oven is -9
Monday, May 20, 13
19. Reflection
Our improved design did not work because our first design's
temperature went to 60°c and our improved design's temperature was
50°c.
The materials we changed were that we took out the cloth and the
newspaper and the cloth was replaced by cotton and the newspaper
was replaced by foam.
The materials were poor insulators because it did not warm up the
oven that quickly which means the cotton was a poor insulator
because it is thin.
If we were to improve we would take out the cotton because when we
put more of it it did not heat up as fast or good like last time because
cotton is thin and so that's why it did not heat of fast and good.
Monday, May 20, 13
