Asklemmy

...milk teeth?

To clarify, I'm American, and always heard them called baby teeth 😅

It's great segway to discuss aging, decay and the certain death that awaits them. Or you can do the fairy stuff sure

If you save up enough, you can have them in a bowl with milk, like teeth cereal.

You know how this goes, right?

The resulting thirst for scientific knowledge results in unparalleled technological advancement, but also an endless demand deciduous teeth for further experimentation. Eventually their personally-developed, secretly manufactured and deployed microdrone monitoring network alerts them every time any child loses a tooth in the Western world. Slightly larger drones sneak into the home and collect the tooth. In an attempt to avoid further pressing of ethical boundaries, the drones are equipped to carry in small amounts of currency that are left in place of the tooth. Your family, more literally and on a larger scale than any family before, DOES the tooth fairy 🧚 stuff.

Digital microscopes are very affordable. Basic models up to 1000x can be found for 50 USD.

Break one up and look at the different layers under magnification.

One of the most infamous experiments is submerging the tooth in cola, to show the importance of brushing. In primary school, it was done on white eggs though, but using a tooth would be more authentic. Ironically, while the tooth should completely rot in cola, the liquid is perfect for washing household things (the sink or a toilet bowl for example).

what you can do is hide the teeth under a neighbor kits pillow and leave a note on the door for the parents, then when they leave the money you go back in and take it before the parents find out, just watch out for the local tooth mob boss

Well, I've been tempted to cut them in thin slivers, press them between metal plates, and test for piezoelectricity (they ought to be piezoelectric). Them build a higher-than-normal voltage Colpitts oscillator around it. Higher voltage to compensate for lousy crystal performance, not "high voltage". Maybe tens of volts?

Then use them as a clock source for a CPU. Try to get one with fully static operation in case the frequency is not super stable.

This forms a good introduction to practical necromancy and necrocomputing for children. Happy Halloween!

If they haven't been brushing their teeth and there's visible calculus on them, you could use a metal pick and scrape it off like a dentist doing teeth cleaning, to show them how thick it is.

Another experiment (with Halloween coming up) might be to string those teeth up as a necklace and observe the reactions of people noticing it…

You can drop one in a glass of soda and one in a glass of milk to demonstrate what that stuff does to your teeth after 24 hours.

The first thing that comes to my mind is to polish them like rocks.

crunchy kitty meme comes to mind

Maybe try leaving one in cola for a week or two as an experiment? You'd probably be able to see how the acid affects the enamel, which is why dentists recommend drinking soda through a straw, and also why generally you're not supposed to brush your teeth directly after drinking soda (toothbrush is too abrasive on the weakened enamel).