Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 640 · 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.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) arches and domes (c) tubes
2. 2.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) a ruler (c) two books (d) sheets of paper
3. 3.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
4. 4.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) the gap between books (c) coins it holds (d) the shape of the paper
5. 5.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
6. 6.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) wash your hands (d) lick your fingers
7. 7.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) triangles (c) tubes
8. 8.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we change it (c) we keep it the same
9. 9.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (a) True (b) False
10. 10.🏗️ Where does a temple dome get its strength from? (a) arches and domes (b) triangles (c) tubes
11. 11.True or false: a flat tissue makes a strong bridge. (a) True (b) False
12. 12.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a bamboo pole (c) a round pillar (d) a temple dome
13. 13.True or false: a bridge truss gets its strength from arches or domes. (a) True (b) False
14. 14.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a wet flat sheet (c) a zigzag-folded sheet (d) a torn flat sheet
15. 15.🌉 Which of these makes a weak bridge? (a) a torn flat sheet (b) a U-shaped channel (c) paper with folded edges (d) a zigzag-folded sheet
16. 16.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) turmeric powder (c) two books (d) a balloon
17. 17.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) a bamboo pole (c) a bridge truss (d) a roof frame
18. 18.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) low and steady (d) on top of a pet
19. 19.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we measure it (c) we change it
20. 20.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
21. 21.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) more coins (c) only water (d) the same coins
22. 22.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) False (b) True
23. 23.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True
24. 24.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) turmeric powder (d) coins
25. 25.🏗️ Where does a round pillar get its strength from? (a) triangles (b) tubes (c) arches and domes
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.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) tubes (c) triangles
28. 28.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
29. 29.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) one flat sheet (c) rolled paper tubes (d) a flat tissue
30. 30.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) tubes (c) triangles
31. 31.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) two books (d) a battery cell
32. 32.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a flat tissue (c) a wet flat sheet (d) one flat sheet
33. 33.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a balloon (c) coins (d) two books
34. 34.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) upward (c) less (d) more
35. 35.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) a hollow bird bone (c) a round pillar (d) a roof frame
36. 36.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
37. 37.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it stiffer (c) folds are magnetic (d) folds make it wet
38. 38.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
39. 39.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a mirror (c) turmeric powder (d) a ruler
40. 40.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the gap between books (b) coins it holds (c) the shape of the paper (d) where coins are placed

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