Okay kiddo, so you know that proteins are made up of really tiny building blocks called amino acids right?
Well, sometimes scientists create new types of amino acids and put them together in different ways to make new types of proteins. One of these new types of building blocks is called a beta-amino acid.
When these beta-amino acids are put together in a long chain, they make something called a beta-peptide. This is like a protein, but made up of different building blocks than normal proteins.
Scientists are really interested in beta-peptides because they have some special properties. They can be really stable and resist breaking down, so they could be used to make drugs or other useful things.
But because they're made up of different building blocks, they don't always behave in the same way as normal proteins. So scientists need to study them a lot to understand how they work and how they can be used.
So, beta-peptides are like a special kind of protein made up of different building blocks. Scientists like them because they have some cool properties and potential uses!