Next-Gen

Osmosis

by allenbquick
Last updated 5 years ago

Discipline:
Science
Subject:
Biology

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Osmosis

Distilled water, cups, salt and sugar.

Materials Used

Hypothesis

A potato core placed in distilled water will gain weight, and cores placed in 1/2 M solutions of salt and sugar will lose weight.

Set Up

Results

Weigh 3 potato cores.Fill 1 cup with distilled water, another with1/2 M salt solution, and a third with a 1/2 M sugar solutions.Place one potato core in each of the solutions

What I Learned

Water did move into and out of thepotato cores. It was most likely osmosis.

Unexpected Results

There was no mass change in the potatocore that was in the sugar solution. I expected that core to lose mass.

How I would Redo it

I would cut the potatoes into large, thin disks for more surface area.


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