Okay buddy, let's imagine that you're playing with your building blocks, and you have different kinds of blocks that look and feel different. Just like that, in chemistry, there are different kinds of chemicals that are called organic compounds and they all have their own unique properties.
Organolead chemistry is the study of one special kind of organic compound called organolead compounds. These are made up of a tiny piece of lead (which is a metal) combined with other atoms like carbon, hydrogen, and oxygen.
Organolead compounds are used in many different ways, but they can sometimes be very dangerous and toxic to living things. That's why scientists are very interested in studying them to understand how they work, and how they can be used safely.
So just like playing with your building blocks, scientists are trying to figure out how these organolead compounds work and how they can be used without causing harm.