It’s the most wonderful time of the year and you know what that means- time to bring out all of your winter gear and bundle up. But dropping temperatures can also make room for some cool science experiments, like making frozen bubbles! This activity should work if it is 32 degrees Fahrenheit or lower outside with low wind speeds.
Materials for deluxe homemade bubble solution:
The water in the bubble solution freezes into crystals, appearing on the surface and inside the bubble solution. Study the photo carefully until you begin to see a crystal pattern on the outside of the bubble. Crystals are a special type of solid material where molecules fit in a repeated pattern, creating many kinds of unique shapes. They form in nature when liquids cool and begin to harden. A common example of a crystal is a snowflake. Be sure to visit NYSCI this winter to learn more about crystals!
Imagine charging your cell phone wirelessly and anywhere in the world, free of charge. Our daily lives would probably run much more efficiently. This was Nikola Tesla’s idea when he invented the Tesla Coil in 1891.
Using wound up wires, Tesla would charge the coils with energy to create an electric field. This field of electricity is what transmits energy in the air. You would only need to be in the vicinity of the electric field to charge your phone!
Unfortunately, in order to have large coils generating free energy around the world, one would need a considerable amount of funding. Something Tesla wasn’t able to find.
In this GIF Mohsin Raza, a former Explainer at the NY Hall of Science, places a fluorescent light bulb in the coil’s electric field, causing the bulb to light up!
Ever wondered how elephants brush their teeth? Well let’s be real, they do not. But with this experiment, you can create enough “toothpaste” for an entire elephant herd!
This elephant toothpaste that you have created is actually foam. Each tiny foam bubble is filled with oxygen. The yeast removed the oxygen from the hydrogen peroxide at a very fast rate, causing many bubbles to form. You may also notice that the bottle feels warm since this is an exothermic reaction. This may sound complicated but it just means that the reaction releases heat. The foam or “toothpaste” is made out of just water, soap, and oxygen, so feel free to wipe it away or pour it down the drain when cleaning up!