whats freezes faster more or less salt' - PowerPoint PPT Presentation

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whats freezes faster more or less salt'

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One day me and my friends were talking and I said I wonder if ... Discussion and Data Analysis. I knew the whole time that the less salt would freeze first. ... – PowerPoint PPT presentation

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Title: whats freezes faster more or less salt'


1
whats freezes faster? more or less salt.
2
Table of contents.
  • How I got the idea
  • the experiment
  • results

3
How i got the idea.
One day me and my friends were talking and I said
I wonder if salt effects the freezing time of
water. So I did the experiment to show you if it
does.
4
Experiment
I took five jars and put 1/2 cup water in them.
Then I put 1 spoon of salt in the first jar 2 in
the next 3 in the next one 4 in the fourth one
and 5 in the fifth one. Then I froze them and for
the results look at the results slide.
5
Variables
Independent Variable ------ Amount of
NaCl Dependent Variable -------- Order of
freezing Constants ------ Amount of water,
containers, same freezer.
6
Results
Well I found out that the jar with 1 spoon of
salt froze first then the 2nd and so because the
more slat the lower temperature it needs to be to
freeze.
7
Data and Charts

table jar number jar1 jar2
jar3 jar4 jar5 amount of water
1/2 C. 1/2 C. 1/2 C. 1/2 C. 1/2
C. Amount of salt 1 S. 2 S. 3
S. 4 S. 5 S. What froze first
1st 2nd 3rd 4th
5th
8
Discussion and Data Analysis
I knew the whole time that the less salt would
freeze first. Because salt effects the freezing
time of water. So I thought if there was more
salt it would take more time to freeze. The
experiment went well and I wouldnt change
anything about it.
9
Conclusion
The experiment is done and I was right the whole
time. Less salt less freezing time. Now I know
that salt effects the freezing time of water
10
acknowledgements
I got the idea from my friend for this experiment.
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