Thursday, November 4, 2010

Tin foil lab

INTRODUCTION:
We were trying to figure out what would happen when we mixed together, tin foil and salt and hydro cloric acid together! And made a prediction on what would happen the father we went along.

HYPOTHESIS:
Our hypothesis was that the tin foil would just sit there and not do much, and we didnt think that the temp would change at all... that the blue stuff would completely dissolve!

MATERIALS:
The materials that we needed were a beaker, a stir rod, the blue salt stuff, a thermometer, a piece of tin foil, and water!

PROCEDURES:
we fist put the water in the beaker and took the temperature, then we put the salt stuff in and stirred it all up till it was all de-solved, and then took the temperature again, and then put the tin foil in it and stirred it up, and then took the temperature again, and then we observed as we stirred, and noticed that the tin foil started to go black and fall apart, and that the temperature started to rise, and then there were bubbles that  came out, and steam looking stuff that came off the top! Then we looked at the bottom of the beaker and noticed that there was red stuff starting to form... which was the copper from the tin foil...

DATA:
we just noticed that about every couple minutes the temperature of the mixture would rise, and it ended up rising about 10 degrease celsius. And it took a long time to stir the blue stuff till it all de-solved!

DISCUSSION:
we learned that even adding a few different thing together u can get pretty good results, and cane change things a lot!  some of the errors that would might have made are that me might not have kept the tinfoil ball loose enough.

CONCLUSION:
our hypothesis was wrong because we didnt have any idea what it would do. and what it did do was really cool! we reject our hypothesis b/c it was not even close to what actually happened! and had to pay close attention to what was going on!

10 comments:

  1. good thoughts and observations..

    no details. or any info.!!

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  2. +Good questions...
    -But we need them to be answered. More info please!

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  3. good, . . . colors? needs more of everything! more details, pics and background info. :D

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  4. Nice start... find some time for your blog, some information.

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  5. positive- i like your start
    criticism- try to finish :)

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  6. Needs to be finished and maybe add some color =] awesome blog dawg

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  7. Organized good? needs to be finished

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  8. Great idea to begin but need Information!!

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  9. very organized but I would add some color to it.

    ReplyDelete