Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 502 · 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.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
2. 2.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a flat tissue (c) a torn flat sheet (d) rolled paper tubes
3. 3.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
4. 4.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) triangles (c) tubes
5. 5.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a battery cell (c) a ruler (d) coins
7. 7.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we measure it (c) we keep it the same
8. 8.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) paper with folded edges (c) a zigzag-folded sheet (d) a U-shaped channel
9. 9.True or false: a balloon is needed for the paper bridge. (a) True (b) False
10. 10.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
11. 11.⚖️ 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 measure it (c) we keep it the same
12. 12.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
13. 13.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
14. 14.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
15. 15.🔮 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
16. 16.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
17. 17.🏗️ Which of these gets its strength from a tube shape? (a) a bamboo pole (b) an old stone bridge (c) an eggshell (d) a temple dome
18. 18.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) the same number of (d) more
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) two books (d) a mirror
20. 20.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a torn flat sheet (d) a zigzag-folded sheet
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) turmeric powder (c) a ruler (d) sheets of paper
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) sheets of paper (d) a magnet
23. 23.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a flat tissue (c) paper with folded edges (d) a U-shaped channel
24. 24.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) tubes (c) triangles
25. 25.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) triangles (c) arches and domes
26. 26.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
28. 28.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
29. 29.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) high and wobbly (d) low and steady
30. 30.🏗️ Where does a temple dome get its strength from? (a) triangles (b) tubes (c) arches and domes
31. 31.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
32. 32.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) two books (c) a mirror (d) turmeric powder
33. 33.True or false: one flat sheet makes a weak bridge. (a) False (b) True
34. 34.True or false: a hollow bird bone gets its strength from a tube shape. (a) False (b) True
35. 35.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) the gap between books (c) the shape of the paper (d) the kind of paper
36. 36.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds add glue (c) folds are magnetic (d) folds make it wet
37. 37.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a mirror (c) a ruler (d) a magnet
38. 38.🏗️ Where does an eggshell get its strength from? (a) tubes (b) triangles (c) arches and domes
39. 39.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we change it (c) we keep it the same
40. 40.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) False (b) True

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