1. 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 Fair Scientific Test StructureJointsBeamsMix up

2. The one thing that stays the same is called a ___________

3. Control Factor

4. The things you change are called ___________.

5. Variables

6. If you wanted to find out how far you can jump what is one thing you should keep the same?

7. Your take-off.

8. What is a fair scientific test?

9. One with a control factor?

10. What is not a fair scientific test?

11. A test without a control factor.

12. What is a simple bridge structure?

13. A tree trunk – it is a beam structure.

14. What structure is used to support a beam ?

15. A pillar.

16. What do you call a rectangle shape with triangle puzzles pieces giving extra support?

17. A Truss

18. Why does a round arch support more weight than a square arch?

19. Because each brick takes the force of the weight the arch is holding up.

20. Why does this structure in nature use the triangle shape?

21. Because the triangle makes other shapes / structures strong and stable.

22. What type of joint can be used to hold things together if you have no glue, tape, or nails?

23. A slot joint

24. What type of joint is used to hold together two pipes?

25. A push joint

26. If you had to make a “T” shape how can you support the connection to make it strong and stable?

27. Use a Gusset

28. What type of joint is this?

29. A gusset joint.

30. Where would you see this type of joint used?

31. In the packaging of a cardboard box.

32. How do you lay a beam to make it stable?

33. Lay it flat

34. If a beam is strong but not stable how did it get postioned?

35. On Edge

36. A beam will sag when this is true

37. It doesn’t have enough support

38. What type of beam is this?

39. An I-beam

40. What type of beam is this?

41. A triangular beam

42. For a structure to be usable it must be __________ for people.

43. Safe

44. This is what you call a strong and stable structure.

45. A safe structure.

46. How can you make a pillar more stable?

47. Make the size of the pillar larger.

48. How did this structure fail?

49. It pinched.

50. How has this structure failed?

51. It collapsed