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Make Purple Slime
Use polyvinyl alcohol (PVA), 2 drops of phenol red indcator solution, 2 drops of bromthymol blue (BTB) solution, 1 drop of vinegar and borax solution.
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Let some of the purple colored slime dry out. It will become a plastic film and it will also change colors. Put it back in a little water and it will become slimey and purple again. |
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Alginate Worm Connection Kit
Make terrific, colorific wormy gel and introduce chemical changes in elementary grades. Make a calcium chloride solution squirt in a little sodium alginate solution and pull up beautiful gels. Add lemon juice or baking soda to the alginate solution and the red cabbage juice indicator will change colors and you can make different colored "worms".
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The Instant Indigo Dye Kit
Make leuco-indigo solution and learn about reduction-oxidation vat dyeing
Click Here For More Information
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Red Cabbage Jiffy Juice
Make these colorful solutions and measure pH with our new powdered red cabbage extract and pH chart.
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The Soda Pop Pop Quiz
Which will disappear quicker:
(a) disappearing ink on a paper towel over a carbonated beverage or (b) disappearing ink on a paper towel over water?
Disappearing Ink is really a thymolphthalein solution and is an acid-base indicator. It is a fun "chemical toy" and great for tricks, inquiry and many experiments. It is part of the Patriotic Colors Chemistry Experiment Kit and is also available as a Chemistry Bit.
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