Science

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Across
  1. 4. a joint that is designed to allow movement
  2. 6. the shape and size of a structure and the materials of which is it composed
  3. 12. a process in which pieces of metal or plastic are fused together by the application of heat
  4. 13. the materials and products found in nature
  5. 15. is designed to fix an object into place; the joint allows no movement
  6. 17. a structure, natural or manufactured, that is made by piling up of materials
  7. 18. a sticky substance , such as glue or epoxy cement, that is used to hold objects or materials together
  8. 19. an object with a definite size shape
Down
  1. 1. (brazing) a process in which a melted material is applied to a different type of material
  2. 2. a type of structure that obtains its strength from a thin, carefully shaped outer layer
  3. 3. a type of structure in which a skeleton of materials supports the weight of other parts
  4. 4. an object or a structure that is made by humans
  5. 5. the weight carried or supported by a structure
  6. 7. the need for something built or manufactured to preform as expected for a long time
  7. 8. a process in which a layer material is pressed or glued onto other layers
  8. 9. a branch of philosophy that studies the principles of beauty
  9. 10. of a structure or object, its main purpose
  10. 11. of materials, made up of several different materials
  11. 14. a push or pull, or anything that causes change in the motion of an object
  12. 16. the characteristics of materials