Frightened run-away pepper experiment – cohesion principles.

Black pepper (Piper nigrum) grain

We all know how glue or tape can be used to stick two objects together. These adhesives cause the two objects to cohere (or adhere) together. Cohesion is the word for this sticking force. Cohesion also occurs on common everyday objects – rain to a car’s windows, dust to the ceiling fan, chewing gum on…

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Elephant Toothpaste experiment

Elephant Toothpaste experiment

So, you don’t want to be a kid and instead want to be an elephant because you’ve been told elephants never have to brush their teeth? Well, we have news for you – there’s a lot more differences between kids and elephants than just their teeth.

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