Gun Powder

Essay specific features

 

Issue:

Science

 

Written by:

Edith S

 

Date added:

November 13, 2014

 

Level:

University

 

Grade:

A

 

No of pages / words:

4 / 891

 

Was viewed:

8224 times

 

Rating of current essay:

 
Essay content:

Than we realized that method was taking too long, so we poured the salt nitrate from the beaker back in the plastic container. Afterwards, we filled that entire plastic container up with hot water, and stirred it so all the nitrate would come out of the soil. We than filtered all that water through a filter system we built, into a couple large beakers...
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We kept repeating the process, and when we thought there was no more product left, we used a special strip that detected calcium nitrate, and there was a little left, so we did it a couple of more times. Than we used the strip again, and it was okay to continue the lab. Our filter system consisted of a paper coffee cup and poked out holes in the bottom of it and then covered the base of the cup with a circular shaped sponge...
displayed 300 characters

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