Prehistoric tools were made from many different materials. The most common tools in the archaeological record are those made from rocks and minerals. This is due to their ability to preserve well and not disintegrate over time. Prehistoric humans would seek out stones that would break in predictable ways and could be easily manipulated. These included flint, obsidian, chert, and different versions of quartz. Sometimes prehistoric humans would use fire to heat the raw stone material and make it easier to shape into a tool. As tools became more specialized, the types of materials used to make them expanded. Prehistoric humans began to use bones, antlers, wood, and other organic matter to help them with their daily activities. They would also combine materials to make their tools. For example, they would use wood for shafts of spears or arrows and attach these to stone projectile points using a thread made from animal hide and glue made from plant resin. As humans moved throughout the world, they encountered new types of materials that they could use to create new tools. For example, stone tools made of flint are very common in Western Europe while tools made of obsidian (volcanic glass) are much more common in Eastern Africa.

Many different animals besides humans use tools, but making such diverse and specialized tools is a trait characteristic of our species in particular. These skills separate humans from other primates. Prehistoric tools were made from many different types of materials, including stone, wood, animal bones, and antlers. Eventually modern humans learned how to make tools out of metals like copper and iron. Early tools come in many varieties, including points for spears and arrows, axes, sinkers, atlatls, digging sticks, knives, drills, scrapers, awls, and others. Tools allowed humans to become skilled hunters and fisherman. Prehistoric humans also used stone tools to help them perform daily activities. Tools like axes, scrapers, and awls were used to process animal kills for food preparation and to turn animal hides into clothing. Prehistoric humans also used tools to work wood and plant materials into shelters. By using tools, humans exerted some control over their environment and were able to influence and change it. This allowed them to live in more diverse climates and spread throughout the world.

Humans have always manipulated their environment, whether by acquiring food, making and using tools, or other aspects of daily life. They are constantly interacting with their environment on a daily basis. By using the available materials, humans have created shelter, made tools, created containers and vessels, and produced items of personal and cultural significance. Many of these resources are naturally occurring, such as stones, minerals, animal bones, or organic fibers from plants, while others are made from combining materials. The process of acquiring these materials and the manufacturing process can be traditional practices that are passed down from one generation to another. Because materials are unique to the location of different communities and cultures, by studying the types of materials, as well as animal remains found and the processes used to manipulate them, anthropologists and researchers can learn about the daily activities and lifestyles of the cultures they are studying. In what ways do you interact with your environment on a daily basis?

The discipline of archaeology has changed dramatically since the time when average people were searching for strange or exotic objects. Today's archaeologists carefully excavate sites by recording the context and stratigraphic relationship of the objects they recover. Archaeologists are careful to take detailed notes during the entire process. When people continue to live in the same location for a long period of time, they build on the remains of those who lived there before, thus creating layers of remains that can be studied to learn how people lived and how they interacted with other groups. Excavation, however, is only part of the process of archaeology. Today the archaeologist may use techniques of the chemical or physical sciences to study materials used in the past and to determine where they were made and if they were brought into a site from somewhere else. Another approach is that of experimental archaeology where archaeologists attempt to recreate the objects of the past to understand the process by which the objects were made. Examples of experimental archaeology might be making tools (e.g., flintknapping) or by attempting to recreate some special type of pottery.