This is a recording of a recent live teleclass I did with thousands of kids from all over the world. I've included it here so you can participate and learn, too!
We’re going to be mixing up dinosaur toothpaste, doing experiments with catalysts, discovering the 5 states of matter, and building your own chemistry lab station as we cover chemical kinetics, phase shifts, the states of matter, atoms, molecules, elements, chemical reactions, and much more. We’re also going to turn liquid polymers into glowing putty so you can amaze your friends when it totally glows in the dark. AND make liquids freeze by heating them up (no kidding) using a scientific principle called supercooling,
Materials:
We’re going to be mixing up dinosaur toothpaste, doing experiments with catalysts, discovering the 5 states of matter, and building your own chemistry lab station as we cover chemical kinetics, phase shifts, the states of matter, atoms, molecules, elements, chemical reactions, and much more. We’re also going to turn liquid polymers into glowing putty so you can amaze your friends when it totally glows in the dark. AND make liquids freeze by heating them up (no kidding) using a scientific principle called supercooling,
Materials:
- Chemistry Worksheet
- Aluminum pie plate
- Bowl
- Clear glue or white glue
- Disposable cups
- Goggles & gloves
- Hydrogen peroxide
- OPTIONAL: Instant reusable hand warmer (containing sodium acetate )
- Liquid soap
- Popsicle sticks
- Scissors or pliers
- Sodium tetraborate (also called “Borax”)
- Water bottle
- Yeast
- Yellow highlighter
- Optional: If you want to see your experiments glow in the dark, you'll need a fluorescent UV black light (about $10 from the pet store - look in cleaning supplies under "Urine-Off" for a fluorescent UV light). UV flashlights and UV LEDs will not work.
The answer key is on the very last page of the PDF file. Enjoy!
Aurora, do you have an answer sheet for the worksheet? We missed a few answers. Thank you.
Try logging out and then back in – did that fix it?
hello its me harry again the video says i can not watch it
Thanks, but last night my older brother broke it into, like six pieces. OH, well. THANKS! 🙂
Oh, no! Sounds like something interesting happened, though… you now know how to make super-dry putty if you ever need it!
Try making it again, and watch that 50/50 glue/water ratio. Try 40/60 and 60/40 to see if that helps make a difference. Sometimes glue sits around for awhile and separates and gets dehydrated so really mix that water in there.
Daniel again, to clarify something that only happened once, i tried putting water over it but i don’t think that helped! HELP!!!!!!!!!!!!! 🙁
Aurora, my glow in the dark putty keeps breaking in piece when i toss it up then it hits the floor. How do I fix that? Daniel A. Earnest.
loved the overflowing gooey stuff, that was so much fun. (I’m sure the Dinosaurs will love it) 😉
You can make it by boiling off the water from the baking soda-vinegar reaction, but it’ll ruin your pan, stink up the kitchen, and need gallons of vinegar to make enough. Perhaps a pharmacy or hospital supply company can help? You can buy just the granules like this: http://www.hometrainingtools.com/sodium-acetate-30-g but you have to make sure to have the right solution (which is really hard to do…). I buy these by the hundreds for my workshops, so I don’t have a good supplier other than Amazon for online purchases for these.
Another thought: you can do this same experiment (but it’s less dramatic) with water… did you look at the Instant Ice experiment? https://www.sciencelearningspace2.com/2011/06/instant-ice/
Reusable hand warmers with sodium acetate are not easily found where I live here in the South (South Carolina). Online they are a little pricey to buy when we are just going to tear them open and use them for science experiments. I see where there are tutorials for making sodium acetate at home. What are you thoughts on this? Safe? Worth doing?
Thank you.
SO, Aurora, preparing to start this course in September and just previewing…concerned that we won’t see things glowing in the dark – it stays bright out here for a really long time…maybe take the solution to the bathroom to see it?….HA!