Introduction: Several Uses for Old Cans

have any cans lying around? then don't just throw them away! recycle them!

I will let you see some awesome ways to use your cans!

Step 1: Make a Fire

yes that's right! make a fire!

this is because the back of a can is a perfect parabola, that means you can focus light with it!

you will need:
a piece of chocolate
can
piece of paper
sunny day

step 1.
rub the chocolate over the bottom of the can until it reflects good

step 2. go outside and focus the sun with it on your piece of paper

step 3.
have fun

Step 2: Popcorn Machine

what you need:
tape
tealight
nails
can
vegetable oil
corn
knife

step 1
make the can; draw a triangle on the can like in the picture and cut it out like I did

step 2
make the holder. get the tealight and tape the 4 nails around it

step 3
put the mixture in. 2 teaspoons of corn and 1 teaspoon of oil

step 4
the rig; put the can on top of your nails

step 5
the popcorn; light wait add salt and enjoy!

Step 3: Make It a Target

this is actually quite familiar with those airsofters out there...
but for those who don't know:

put a can on some spot at about chest height

shoot it off


another use for a can!

Discover Green Science Fair for a Better Planet

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