How is glass made from sand?
Wizard Sand
How is glass made from sand?
You're holding a glass of water. Clear, smooth, perfectly see-through. Now look at sand — gritty, dull, made of a million tiny rocks. How does one become the other? The answer involves heat. A lot of heat.
Sand is mostly made of silica — the same stuff that forms quartz crystals. Those tiny grains are actually bits of rock that have been ground down over thousands of years. Each grain is hard and rough, with its atoms locked in a tight, rigid pattern like bricks in a wall.
