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My wife made a whole YouTube series on fun experiments you can do with young kids. This one creates beautiful art by utilizing syphoning and chromatography on toilet roll using normal colored pens! https://youtu.be/U41HIDxertg?t=149

The USP of the videos is to create something the kids want to watch in parallel to the adult learning the experiment. It tries to avoid the split attention and bored kids you get when following experiment notes. Also she avoids difficult ingredients

"something the kids want to watch in parallel to the adult learning the experiment"

This is brilliant, and exactly what I'm looking for. There's so much good stuff out there, but I need to figure it out first and then walk my (young) kids through it.

Much thanks to your wife for making these, and you for posting it here!

I skimmed the video so I've got an idea of what/how to pitch it to my kids and I'm hoping we can do this later today. Wish me luck! :)

Good luck! Let us know how it goes!
The good news: The video was awesome. It got their attention, it was easy to follow, and I could also see what needed to happen after.

The bad news: I did a bad job pitching it. In retrospect I should have waited until they were bored. What I did was excitedly show it to them even though they were hoping to do other things.

D'oh!!!!!!

I might give it another shot, but I think I missed the window :(

Maybe try a different video. The paper cutting one is popular too, and u only need scissors, pens and paper: https://youtu.be/-_QgA767lvw
I watched the video about the hot and cold water https://www.youtube.com/watch?v=XGpKH0Sobcs When she puts the cold water at the top and the hot water at the bottom (around 2:18) I was surprised they mix so fast. I was expecting to see some movement like in a lava lamp and a total mix after some time. Have she tried with some more viscous fluid like oil? (It would be more difficult to clean, and the parents will hate her.)

Also I didn't see any experiment about non Newtonian fluids with strach+water. It cause a huge mess, but it is worth.

Are you helping her? Do you have some interesting anecdotes? Perhaps you both can write a blog post and post it here.

Yeah that's a cool one. I help a little with the apparatus for some of them but it's definitely her gig. She started this before lockdown so now it's a struggle shooting them and looking after the twins fulltime, so our bandwidth is a bit limited at the moment. Starch water mixing is a great idea if we can do it with simple flour.

We will write a blog soon as we have a ton of tech/sci teaching things that worked out well. Our 4 year olds recently learnt to type/write from using the search bar in Minecraft! They were so desperate to dress their horses they learn to type horse from a paper prompt to get the horse accessories! Lol

Normal flour is not useful, I'm not sure why[1]. But you can buy starch for cooking in most supermarkets[2].

[1] My guess is that normal flour has gluten that makes it sticky and traps the small CO2 bubbles that are produced by the yeast to make bread. I always wondered this.

[2] At least here in Argentina.

I tried getting an egg inside an impossibly narrow mouthed glass container by soaking it in vinegar for a few days.

The vinegar dissolved the shell very efficiently, but it also swelled the size of the egg by maybe 25%.

Did you try to 'suck' all the air out of the jar by lighting a candle inside it.
About #6: Measure each bear and write it down, but also takes photos, preferably the three bears in the same photo with a ruler and a coin for scale. For bonus points do this each hour.

I don't like that the recipe is too loose with the concentration of the salt. I tried to look at the numbers an 1 tablespoon is not enough to get a saturated solution. (I need 5 in my approximate calculations.) I'd prefer to use a saturated solution, because it's better to reproduce the result. It may be too much for the bear. (The saturation level changes with temperature, but let's ignore that.)

Any cook should know that a simple volume measurement of salt is useless - eg 1 tbsp of kosher flake salt is way less salt than 1 tbsp table salt
Mass would be more accurate.
Mass is too difficult for a DIY recipe, specially for small amounts of things or for unusual items. I think it's fine to say "1 tablespoon of salt", but for a small increase of reproducibility I'd prefer a saturated solution.

Here in Argentina the cooking recipes we don't use "cups", we instead use mass for some materials, like flour or sugar, 200 grams of flour is something like a small glass or something. You can buy a measuring glass that has the marks for the common cooking elements like sugar, flour, water, ... assuming a standard density.

Also, the cooking books have a very inaccurate conversion table that says how many grams has a glass full of each material. (For an ideal glass of 250ml probably, my glasses are bigger, something like 300ml or 350ml, so I have to fix the numbers.)

All I see are "Sponsored Links by Taboola".
All I see are two layers of requests that they would please like to violate my privacy. Not surprised to hear that there are Taboola links somewhere underneath.
yep, I do not see those ads as I have Priv Badger and uBlock, but they are clicking at 15 & 21 requests blocked, respectively.