Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 278 · 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.🔍 Which is the odd one out? (a) a wet flat sheet (b) paper with folded edges (c) rolled paper tubes (d) a U-shaped channel
2. 2.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
3. 3.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) rolled paper tubes (c) a wet flat sheet (d) paper with folded edges
4. 4.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a bridge truss (c) a bamboo pole (d) an old stone bridge
5. 5.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
6. 6.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
7. 7.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we keep it the same (b) we change it (c) we measure it
8. 8.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
9. 9.True or false: a round pillar gets its strength from a tube shape. (a) True (b) False
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a ruler (d) a mirror
11. 11.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) coins (c) two books (d) turmeric powder
12. 12.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) tubes (c) triangles
13. 13.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
14. 14.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds are magnetic (c) folds make it stiffer (d) folds make it wet
15. 15.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) True (b) False
16. 16.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) upward (c) not at all (d) less
17. 17.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
18. 18.⚖️ 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 change it (c) we measure it
19. 19.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
20. 20.True or false: paper with folded edges makes a strong bridge. (a) True (b) False
21. 21.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the gap between books (c) coins it holds
22. 22.True or false: a zigzag-folded sheet makes a strong bridge. (a) True (b) False
23. 23.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) tubes (c) triangles
24. 24.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) a balloon (c) a mirror (d) a magnet
25. 25.⚖️ 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
26. 26.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) skip washing (c) wash your hands (d) rub your eyes
27. 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) coins (d) a magnet
28. 28.True or false: an electric tower gets its strength from arches or domes. (a) False (b) True
29. 29.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
30. 30.⚖️ 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
31. 31.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) the kind of coins
32. 32.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
33. 33.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) the same number of (c) fewer (d) more
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) True (b) False
35. 35.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
36. 36.⚖️ 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
37. 37.True or false: a bridge truss gets its strength from a tube shape. (a) True (b) False
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) two books (d) a balloon
39. 39.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) the gap between books (c) the kind of paper (d) coins it holds
40. 40.🏗️ Where does an electric tower get its strength from? (a) tubes (b) triangles (c) arches and domes

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