Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 125 · 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 of these makes a strong bridge? (a) a flat tissue (b) one flat sheet (c) a zigzag-folded sheet (d) a torn flat sheet
2. 2.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
3. 3.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
4. 4.True or false: a battery cell is needed for the paper bridge. (a) True (b) False
5. 5.True or false: one flat sheet makes a strong bridge. (a) False (b) True
6. 6.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) skip washing (c) lick your fingers (d) rub your eyes
7. 7.🌉 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
8. 8.⚖️ 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
9. 9.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds are magnetic (c) folds add glue (d) folds make it stiffer
10. 10.⚖️ 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
11. 11.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) a ruler (d) a balloon
12. 12.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
13. 13.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) less (c) upward (d) not at all
14. 14.True or false: a bridge truss gets its strength from arches or domes. (a) False (b) True
15. 15.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) triangles (c) arches and domes
16. 16.True or false: an electric tower gets its strength from arches or domes. (a) True (b) False
17. 17.True or false: a roof frame gets its strength from triangles. (a) True (b) False
18. 18.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) more (c) fewer (d) zero
19. 19.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) only water (c) the same coins (d) more coins
20. 20.🌉 Which of these makes a strong bridge? (a) rolled paper tubes (b) a wet flat sheet (c) one flat sheet (d) a flat tissue
21. 21.🏗️ Where does an eggshell get its strength from? (a) tubes (b) arches and domes (c) triangles
22. 22.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we change it (c) we keep it the same
23. 23.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
24. 24.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) a balloon (c) a magnet (d) turmeric powder
25. 25.🔍 Which is the odd one out? (a) one flat sheet (b) paper with folded edges (c) a flat tissue (d) a torn flat sheet
26. 26.🏗️ Where does a temple dome get its strength from? (a) arches and domes (b) tubes (c) triangles
27. 27.True or false: an electric tower gets its strength from triangles. (a) False (b) True
28. 28.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
29. 29.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) turmeric powder (c) two books (d) sheets of paper
31. 31.True or false: a flat tissue makes a weak bridge. (a) False (b) True
32. 32.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) a round pillar (c) a temple dome (d) a bridge truss
33. 33.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
34. 34.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
35. 35.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
36. 36.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
37. 37.🧺 Which of these is not needed for the paper bridge? (a) a magnet (b) a ruler (c) sheets of paper (d) coins
38. 38.🧺 Which of these is needed for the paper bridge? (a) two books (b) a magnet (c) a balloon (d) a mirror
39. 39.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
40. 40.True or false: coins is not needed for the paper bridge. (a) True (b) False

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