Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 351 · 40 questions

What you do (Shape makes strength): 1. Place two books 15 cm apart, low and steady. 2. Lay a flat sheet across and add coins one by one in the middle until it falls. 3. Fold the same kind of sheet into a zigzag and test it the same way. 4. Record the coins each shape holds, then wash your hands.

1. 1.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a magnet (c) coins (d) two books
2. 2.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) the shape of the paper (c) coins it holds (d) the gap between books
3. 3.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) a round pillar (c) a hollow bird bone (d) an electric tower
4. 4.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
5. 5.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we keep it the same (b) we change it (c) we measure it
6. 6.True or false: paper with folded edges makes a strong bridge. (a) True (b) False
7. 7.True or false: coins is needed for the paper bridge. (a) True (b) False
8. 8.True or false: a magnet is needed for the paper bridge. (a) True (b) False
9. 9.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) fewer coins (d) only water
10. 10.True or false: an electric tower gets its strength from arches or domes. (a) True (b) False
11. 11.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
12. 12.True or false: two books is not needed for the paper bridge. (a) True (b) False
13. 13.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) False (b) True
14. 14.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) one flat sheet (c) a U-shaped channel (d) rolled paper tubes
15. 15.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
16. 16.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
17. 17.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it stiffer (c) folds make it wet (d) folds add glue
18. 18.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we keep it the same (c) we measure it
19. 19.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) upward (c) not at all (d) more
20. 20.True or false: a mirror is needed for the paper bridge. (a) False (b) True
21. 21.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we keep it the same (c) we change it
22. 22.True or false: an eggshell gets its strength from arches or domes. (a) False (b) True
23. 23.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) an electric tower (c) a roof frame (d) a round pillar
24. 24.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) sheets of paper (d) a balloon
25. 25.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) True (b) False
26. 26.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we keep it the same (c) we change it
27. 27.True or false: a bridge truss gets its strength from arches or domes. (a) True (b) False
28. 28.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
29. 29.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we keep it the same (b) we measure it (c) we change it
30. 30.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we measure it (c) we keep it the same
31. 31.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) True (b) False
32. 32.True or false: a round pillar gets its strength from triangles. (a) True (b) False
33. 33.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) coins (d) a mirror
35. 35.🏗️ Where does an eggshell get its strength from? (a) triangles (b) tubes (c) arches and domes
36. 36.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
37. 37.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) two books (d) a balloon
38. 38.True or false: a bamboo pole gets its strength from a tube shape. (a) True (b) False
39. 39.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) arches and domes (c) tubes
40. 40.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) a battery cell (c) turmeric powder (d) a balloon

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