Glass Fracture Patterns

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Across
  1. 2. resistant glass - a laminated and tempered glass composed of two layers
  2. 4. without fixed shape or form; applied to a solid, it refers to having atoms that are arranged randomly instead of in a distinctive pattern
  3. 7. a hard, transparent, amorphous, brittle solid made by heating a mixture of silica and other materials
  4. 9. fracture circular pattern of cracks that forms around a point of impact
  5. 10. glass a double layer of glass held together by a middle layer of polyvinyl butyral (plastic); a type of safety glass used for windshields
Down
  1. 1. fragments of glass left on the side opposite impact
  2. 3. glass glass containing lead oxide
  3. 5. dioxide the chemical name for silica, the primary ingredient in glass
  4. 6. fracture pattern of cracks that move outward from a point of impact
  5. 8. glass heat- or chemically treated safety glass