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Across 1. it makes you buy new products 7. a plan to help organise a work site 10. a bonding of two layers 12. a method of strengthing joints 13. structurally sound 17. load is multiplied by it 19. twisting 20. a force 21. resists tension 23. pulling force 24. unchanging forces 26. a series of triangles 27. walls are one 29. symmetry with many sides 30. a computer program that organises data 31. strength of a force 32. caused by tension

Down 2. curves 3. changing forces caused by nature 4. tension can cause one 5. the mass is concentrated here 6. commpression forces cause this 8. gravity causes this 9. part of a house 11. symmetry with two sides 13. resists compression 14. mirror images 15. too big to move 16. causes buckling 18. a dome is one 21. torsion may cause this 22. pleats 25. changing load caused by regular use 28. opposing pulling or pushing force