What are smaller molecules?

Smaller molecules are like tiny building blocks that make up bigger things we know and love.

Imagine you have a big Lego castle, it’s made of lots of little Legos. Smaller molecules are like those little Legos: they're the basic parts that join together to build bigger, more complicated stuff in the world around us.

If you think about food, smaller molecules can be like tiny sandwiches. A big piece of bread (a bigger molecule) is made by putting two slices of bread together, just like a smaller molecule might be made from just a few simple parts. For example, water is a small molecule made up of two tiny parts: one hydrogen and one oxygen.

You find them in everything, your favorite candy, the air you breathe, even your pet’s fur! These tiny building blocks are so small that you can't see them with your eyes, but they're working hard every day to make the big things you know and love.