Presto! Clock Chemical Reaction Kit - Individual Size
Product ID: 1390750
Make 2 chemical solutions and mix them together. Wait a few seconds, then wow! It will suddenly change colors. This is the famous iodine clock reaction in an easy to use kit. Change the concentrations or temperature and the time for the color to appear changes. Do the clock reaction with Eco-foam. Learn about solutions and rates of reaction (kinetics). Contains sodium iodate, sodium sulfite, citric acid, sodium thiosulfate, starch solution, eco-foam, stirrers, spoon, cups, rack and instructions. (Individual Size) Recommended for ages 10 and up with adult supervision. Concepts and Processes: solutions, rates of reaction (kinetics), oxidation states of iodine, concentration, dilution, starch test, measuring, controlling variables, reversible, models This kit is available in both classroom and individual sizes. Note: Warning for those allergic to sulfides. Review: Can't help but smile with this experiment. - This is a set to experiment on rate of change. The first experiment will produce a slower change, then give you instructions on how to make it faster. It's fun to watch and do over and over again. Review: Good product - Great price.
| Customer Reviews | 3.8 out of 5 stars 7 Reviews |
J**Z
Can't help but smile with this experiment.
This is a set to experiment on rate of change. The first experiment will produce a slower change, then give you instructions on how to make it faster. It's fun to watch and do over and over again.
D**.
Good product
Great price.
M**T
Four Stars
The diirections were very easy to follow and the demo worked perfectly!
G**E
Keep your money in your pocket.
Despite our efforts to the contrary, this product dd not work. It did not perform as the description stated that it would. My children were disappointed. I was not interested in a refund---I was interested in it working well at the time I ordered it. Perhaps we just got a "dud", but I would not risk money purchasing this again.
V**A
back up science project
perfect already made project for last minute science fair. Helpful clear explaination and everything we needed was in the kit.
M**N
Five Stars
Perfect for use.
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