The challenge with chemistry, the atomic theory has limited direct application in nature or how we define nature. Is there a good example to make this connection for a five year old?
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This reminds me of a question that Steve Mould asked in one of his videos a year or two ago: “What does a proton taste like?” And, weirdly enough, he gave a very satisfying answer. You see, the human tongue is able to detect four different tastes, sweetness, saltiness, bitterness, and sourness. And each of these detect different chemical indicators. Sweetness detects sugars, saltiness salts, bitterness toxic chemicals, and sourness acids.
Now, every acid has one thing in common: a positive hydrogen ion that it can easily give up. And, if your child knows enough about hydrogen, they’ll know that this atom consists of a single proton with a single electron going around it. Remove that electron and you just have a proton.
So how do protons taste? Sour!
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