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    What People Are Saying

    Instructions not clear
  • Hilary
  • 08/29/2013
  • The experiments themselves are wonderful for demonstrating osmotic pressure. The directions were not clear. For instance, it was not clear that a layer of Vaseline for the narrow end of the tube meant completely sealing it off with a big glob. It also needs to be stated that in order to dissolve the corn starch in the water, it must be first boiled and then cooled. Otherwise, the corn starch lies at the bottom of the container like a big weight and does not mix at all with the water. In order for us to use this kit again, I will be completely retyping the directions.
    Great for demos
  • Diane Zoldak
  • 11/22/2012
  • I used this set for demonstrating osmotic pressure. I filled the bulb of one with tap water, one with concentrated sugar solution and one with a 50/50 mix, marked the fluid levels and placed all three in a beaker of the 50/50 mix. After an hour the levels of the first two changed quite a bit-more than enough to illustrate the point. I was very pleased at the quality and low price.
    Very satisfied
  • Gavin Hudson
  • 09/25/2010
  • I'm very happy to have the osmosis kit from HomeScienceTools. I couldn't find osmosis lab material in South Korea, where I live. If there were constructive feedback, it would be that I wish HomeScienceTools could ship internationally.

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    Osmosis Set

    Ages 11+

    Item# BE-OSIMET

    $6.95 in_stock

    In Stock

    Product Overview
    This set contains a glass thistle tube and a 12" piece of dialysis tubing.

    Quantity Pricing

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    QUANTITY 1 - 9 10+
    PRICE $6.95 $6.25
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    • Product Details

      Osmosis Set

      This set contains a glass thistle tube and a 12" piece of dialysis tubing. The materials are sufficient to do up to three osmosis or diffusion experiments. Instructions are included for one omosis and one diffusion experiment. You provide corn syrup and corn starch for the experiments.

      The dialysis tubing is selectively permeable regenerated cellulose. Pores in the membrane permit passage of water, most ions, and small molecules. Particles with high molecular weight, like starch, polysaccharides, fats, and protein are restricted.

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