Instructables
Picture of doritos bag problem
for our instructable we are making the doritos bag smaller so that we use less plastic
 
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Step 1: Get the materials

Picture of get the materials
2 doritos bag
1 ruler
1 pair of scissors
1 stapler
1 calculator (optional)

 

Step 2: Measure the bag for the volume

Picture of measure the bag for the volume
without popping the 1st bag form the doritos bag into a rectangular prism get the ruler and measure the bag sides (height, length and width) 

Step 3: Find the volume

Picture of find the volume
to find the volume you have to take the measurements and plug them into this equations (length*width*height)

Step 4: Measure for the surface area

Picture of measure for the surface area
to measure the surface area you have to open the first bag and dump the doritos out now you open the bottom it should now kinda look like a tube and now cut on one of the long sides so when you flatten it out it is a rectangle measure the sides with the ruler

Step 5: Find the surface area

to find the surface area use the measurements and plug them into this equation (length*height)

Step 6: Making the smaller bag

Picture of making the smaller bag
get the second bag and cut the bag short ways so that there is about a centimeter now you have to get the stapeler and staple the bag a few times so it is closed

Step 7: Measure for volume and surface area again

Picture of measure for volume and surface area again
follow steps 2-5 on the smaller bag

Step 8: The end

Picture of the end
you can now compare the diffrence of the measurements of the origanal bag and the small bag

Step 9: Our numbers

Picture of our numbers
the volume we got for our regular bag was 46.79 in cubed
the surface area we got for the regular bag was 99.1875 in squared

the volume for our new bag was 19.25 in cubed
the surface area for our new bag was 60.375 in squared 
HelmutHound10 months ago
Now cook some hamburger (w/ taco seasoning) and add it to the half pouch! Then add diced tomatoes, dices lettuce, shredded cheese, sour cream, and maybe a bit of salsa!
And you'll have . . .
A "Walking Taco!"
rimar200010 months ago
Frito-Lay thinks different...

Anyway, good try.
caitlinsdad10 months ago
Ah, but this gives an example on how theoretical is not practical. Nacho chips are manufactured differently than Pringles chips which are stacked neatly into a can or smaller space. See if you can scoop up a measured amount of nacho chips and fill up your small container without breaking any. Then try to do that a hundred times a minute to get up to production speed. Fun to experiment and try.
It's the same with cereal*. There's a reason packs say "contents may settle".

(There's a similar project for Cheerios - I'm guessing they are tasks set by the same teacher.)
Zachhall5510 months ago
That's awesome
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