2. Imagine for design 1
I imagine that our materials
are yellow foam,cotton and
sand with one unit.
Foam is a good insulator the
same thing with cotton
cotton and sand have a low
environmental impact.
And foam has a high
environmental impact
Idea 1
Monday, May 20, 13
3. Idea 2
Our materials are still cotton that's
going on the top foam that's going on
the bottom and cloth that's on the
sides and all in one unit.
Cotton and cloth have low impact
and they are good insulators and
reusable.
The bad thing about this that foam
high impact and not recyclable
And cotton and cloth are not
recyclable.
Monday, May 20, 13
6. Plan for design #1
Material Units
We will use the
material by
Cotton balls 1 Leave it normal
Cloth 1 Shredded
Foam 1 Shredded
Monday, May 20, 13
7. Impact scoring sheet
Design #1
Reduce
material
units
Is the
Material
natural or
processed
Is the
material
have been
reuse
Can you
recycle the
material
The points
or the
material
Cotton
#of units 1
1
Processed
+1
No +1 No +1 4 points
Yellow
foam 1 unit
1
Processed
+1
Yes -1 No +1 1 points
Cloth
1 unit
1
Processed
+1
Yes +1 No +1 2 points
7 point
Monday, May 20, 13
8. Solar oven testing in the
sun
Time Temperature
0 min 25°C
5 min 37.9°C
10 min 41.3°C
15 min 56.6°C
20 min 59.4°C
25 min 60.3°C
Monday, May 20, 13
9. Solar oven in the shade
Time Temperature
1 min 42.7°C
2 min 35.8°C
3 min 32.1°C
4 min 31.2°C
5 min 32.1°C
6 min 31.1°C
7 min 30.7°C
Monday, May 20, 13
10. Create for design #1
Our heat score is our solar oven maximum
temperature subtracted from control oven:1
Our time score is the number of minutes it took
to cool down which was 7 minutes
Our total impact score 7 points
Our new total score for the solar oven is 0 point
Monday, May 20, 13
11. Improve for design #1
*The total score for our first solar oven was 0 points
*The parts of our solar oven design that work well were
our insulators worked well because they allowed to stay
*The parts of our solar oven design that did not work
well were the time because it took a short time to cool
down.
* We our going to try to improve our impact score
*we will improve our impact score by making sure we
cover all the holes to not let the heat escape because if
we leave it with holes it will get hotter.
Monday, May 20, 13
14. Plan for design #2
Material Units
How will you use
the material?
White foam 1 sheet Cut in pieces
Cotton balls 1 scoop Nothing
Sand 1 scoop Nothing
Monday, May 20, 13
15. Impact score for design #2
Design
#2
Reduce
Natural
or
process
ed
Reuse Recycle Total
White
foam
1 points +1 point +1 No -1 Yes 2 point
Cotton
balls
1 points +1 point +1 No +1 No 4 points
Sand 1 points 1+ point -1 Yes +1 No 0 point
6 points
Monday, May 20, 13
16. Solar oven in the sun
0 min 24.4°C
5 min 40.7°C
10min 47.2° C
15 min 46.8°C
20 min 47.3°C
25min 49.9°C
30 min 47.2°C
Monday, May 20, 13
17. Solar oven in the shade
1 min 46.8°C
2 min 47.0°C
3 min 46.9°C
4 min 46.9°C
5 min 46.9°C
6 min 46 .9°C
7 min 42.3°C
8 min 72.7°C
9 min 92.2°C
10 min 90.1°C
Monday, May 20, 13
18. Create for design #2
Our heat score is our solar oven maximum
temperature subtracted from control oven:
50-53=-3
Our time score is the number of minutes it took
to cool down which was 10 minutes
Our total impact score 6 points
Our new total score for the solar oven is 1 point
Monday, May 20, 13
19. Reflection
Our improve design did not work well because the
materials were change except the cotton and we did not
place the materials correctly . The materials we change
were yellow foam and cloth to white foam and sand.
The only material that stayed the same was the cotton.
The materials we added were poor insulators because
our score was lower and it decreased the temperature.
If we could improve again, we would change the
materials to better insulators like yellow foam and
cloth because our solar oven needs to be full with
insulators to keep in the heat.
Monday, May 20, 13
