Okay kiddo, terpenes are like the yummy and smelly oils in plants that make them smell a certain way. You know how when you smell oranges it smells different than when you smell lavender or mint? Well, that's because of the terpenes in them!
Terpenes are kind of like the plant's perfume, and they help the plant attract things like bees and butterflies that help pollinate them. But terpenes can also have other uses for the plant, like protecting it from insects or bacteria.
And what's really cool is that terpenes are also used by people. Some terpenes, like the ones in lavender and chamomile, can make you feel calm and happy. Other terpenes, like the ones in lemon and peppermint, can help make you feel more alert and focused.
So basically, terpenes are special oils in plants that make them smell different and can have different effects on people too!