An archaeologist studies
the origins of words
the lives of early humans by examining artifacts
the earth, rock forms, and strata
early human culture and development compared to the present day

An archaeologist studies the lives of early humans by examining artifacts. Archaeology is essentially the study of human life, as well as material culture and environmental data which can explain how people in history lived. This includes prehistory and history. Archaeologists use different ways to identify this through surveying, excavation and analysis of data collection.

This is all you, but i can give you some topics that you could try. if it rained when you want to do something outdoors, it 'limits' that human activity. maybe you want to do an experiment that goes throughout the whole year and you have to have above freezing the entire year. this 'limits' your activity. i thought of those just off of the top of my head. something that gets to me that might be getting to you is you are thinking too hard about what to do. think simply, and if it is too simple, then bump it up just a little bit.