Across
- 5. it takes a large force to dent or scratch the surface
- 6. a polymer used in protective equipment to absorb the force of an impact
- 7. made from two or more different materials to give the best properties of each
- 10. a shape designed to reduce air resistance
- 12. another name for heat energy
- 13. a material made form heating silica or clay
- 14. a metal alloy of iron and carbon
Down
- 1. when the material can be easily hammered and shaped
- 2. a man made fibre like nylon or lycra
- 3. the force needed to stretch and break it
- 4. a material that conducts heat and electricity
- 8. a material made up of long chains of monomers
- 9. a smart polymer that is five times stronger than steel
- 11. when a material breaks apart easily when a small force is applied