Science is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe. In a closely related meaning, "science" refers to the body of reliable knowledge itself, of the type that can be logically and rationally explained.
Stone Age was not only about things made of stone. People were using other materials such as bones, wood and antler as well. Crafting was mainly done by men as well as hunting, fishing and protecting the village while women were mostly gathering berries. (That’s why it’s said that women can see more colours than men.) About 1,5mya people started using fire as a source of heat, for cooking and as a protection against animals.
As regards to weapons people were using pretty much everything to beat animals. Smaller rocks, spears or even trapping pits.
Later on people moved from hunting and started fishing or growing up plants like wheat and barley. At first there were using hands, simple diggings sticks or hoes to create holes to plant seeds in. In order to store food people have created ceramic or clay pots and vessels.
In that time people used to wear wool or linen cloth but also any other animal skin.
Here on the picture you can see some common tools like grinder (grind herbs, seeds)
Bronze Age brought improvements especially in weapons and food storage. Bronze swords and axes have become common weapons. Shield was invented during the 14th century BC but it was more used in the Iron Age. The invention of wheel was revolutionary because it allowed us to transport heavy objects. It was also used during the wars as a type of carriage. These were called chariots. The second revolutionary thing is Abacus. Abacus is considered to be the forerunner of the modern computer.