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We have three 6th grade Science classes and two 8th grade Science classes blogging here from the Pacific Northwest in Chimacum, WA! Sixth graders are learning a bit about Mt Saint Helens, environmental science through fresh water ecology, and physical science this year. Eighth graders are learning about life science this year. Please join us as we learn Science by exploring our world.
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teacher: Alfonso Gonzalez

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Polyacrylate Experiment In class my team did a polyacrylate experiment where we had 5 different vials with a different liquids in each vial. In vial 1 we had regular water the polyacrylate or other wise known as Orbies expanded as usual after 24 hours our orbies were 615.7 px. After 48 hours they were 630.8 px which means they shrunk! Vial 2 had hydrogen peroxide, at 24 hours they were 656.5 px and at 48 hours they were 598.0 px. Vial 3 had salt water, the orbits in salt water barely expanded at all! After 24 hours they were on 268.8 px and 48 they were 292.6 px. Vile 4 had dirty water and in this vile after 24 hours they were 620.9 px and after 24 hours 623.6 px. I thought it was interesting how all of the orbies except for vial 3 and 4 shrunk after 48 hours. The salt water and dirty water vials expanded after 48 hours andni do not understand why those two vials did not shrink when the other 3 did...

Article posted November 4, 2011 at 12:26 PM • comment (6) • Reads 1521 • Return to Blog List

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i think it is interesting to!!! keep up the REALLY god work! and PLEASE try visiting my blog!! we might have things in commen!
Comment Posted on November 24, 2011 at 04:51 PM by Determined

You should take hip hop lessons!
Comment Posted on November 18, 2011 at 01:27 PM by Touchdown

Touchdown- I don't remember I just clinked random blog links(:
Comment Posted on November 18, 2011 at 11:37 AM by Hollie

How did you find my blog?
Comment Posted on November 17, 2011 at 01:30 PM by Touchdown

My group also experimented with the orbies but we did cold, warm and hot water. our colder ones grew faster but then they shrunk faster than the others. We dont really understand why they do that either.
Comment Posted on November 15, 2011 at 11:57 AM by Sam G

Wow! That sounds a lot more interesting than what we're doing in science. I don't know why the two vials didn't shrink either.
Analytic (:
P.S. Please go to my blog! I have a bunch of stuff posted! At least compared to other people in my class.
Comment Posted on November 11, 2011 at 01:59 PM by Analytic

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