1. STONE AGE TOOLS
Ellen Yu, 5th grade.

2. Stone Tools The Stone Age：
-A broad prehistoric period during which stone was widely used to make implements with an edge, a point, or a percussion surface.
-The period lasted about 3.4 million years, and ended between 8700 BCE and 2000 BCE because of metalwork.
The earliest stone tool making developed by at least 2.6 million years ago.
Often made from quartz, flint, obsidian or other hard rock types.

3. Blade Cores
Were chunks of sharp rocks used as the source for other types of tools.
Pieces of stone would be flaked off of the core, in the shape of thin, rectangle-like chips.
These were crafted into knives, spear blades, hand axes and other tools and weapons.
Blade cores were so crudely fashioned that it is sometimes impossible for archaeologists to tell if a stone is a tool or a naturally formed rock.

4. End Scrapers
Is a tear-drop shaped piece of stone used to strip fat, flesh, and hair from the hides of animals, or to shape bones and wood as needed.
Could either be hand-held or attached to handles made of wood or bones.
The main purpose of the tool appears to have been to aid in the production of animal hide clothing and shelter.

5. Burins
Were stone tools with a rounded grasping end and a sharp, razor-like working end.
The tools were formed by striking off a small stone flake from a larger stone flake.
Burins were used for carving other materials such as bone and wood.
They were wielded either in hand or attached to a wooden handle.

6. Awls
Small, circular stone flakes with multiple sharp points around the tool's circumference.
Prehistoric humans used the awls to shred and slice fibers for use as thread and fishing nets.
Also could have been used to punch holes in leather and wood and to cut animal skins when making clothing.
While typically made of stone, bone awls have been found, though bone tools are softer and less durable than stone.

7. Clovis Points Is a specific type of North American stone spear point.
Are leaf-shaped with a triangular point and a wide, grooved and made to fit into spear shafts.
Used for distance hunting, where the spear would be launched at a large animal for safety, or to lunge at prey when at close quarters.

8. Stone Age Knives
Ranging in size from as small as a guitar pick to a length of several inches.
Were usually flakes of flint, quartz or obsidian. Small and typically rounded.
Used for slicing through animal flesh; had a cutting edge and a thick blunt side for holding.
Tapered, or smaller, knives had either one or two cutting edges.
Some used as weapons and for killing other animals also had pointed tips to be more efficient at stabbing.
Stone Age knives had the blade and handle in one solid piece.