Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 875 · 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.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
2. 2.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it turns to card (c) it sags and falls (d) it floats up
3. 3.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) rolled paper tubes (d) one flat sheet
4. 4.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) paper with folded edges (c) rolled paper tubes (d) a U-shaped channel
5. 5.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) a magnet (d) coins
6. 6.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
7. 7.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) more (d) the same number of
8. 8.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
9. 9.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
10. 10.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) skip washing (d) lick your fingers
11. 11.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) turmeric powder (c) coins (d) two books
12. 12.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a balloon (c) a mirror (d) sheets of paper
13. 13.True or false: two books is needed for the paper bridge. (a) False (b) True
14. 14.True or false: coins is not needed for the paper bridge. (a) True (b) False
15. 15.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we keep it the same (c) we change it
16. 16.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
17. 17.⚖️ 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) where coins are placed
18. 18.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
19. 19.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
20. 20.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
21. 21.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a U-shaped channel (c) a torn flat sheet (d) a flat tissue
22. 22.True or false: a mirror is not needed for the paper bridge. (a) True (b) False
23. 23.True or false: an eggshell gets its strength from arches or domes. (a) True (b) False
24. 24.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) low and steady (d) high and wobbly
25. 25.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) a balloon (d) a ruler
26. 26.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
27. 27.🏗️ Which of these gets its strength from triangles? (a) an electric tower (b) an eggshell (c) a temple dome (d) a bamboo pole
28. 28.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
29. 29.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
30. 30.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
31. 31.True or false: a mirror is needed for the paper bridge. (a) True (b) False
32. 32.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) turmeric powder (c) two books (d) a battery cell
33. 33.🔍 Which is the odd one out? (a) a torn flat sheet (b) one flat sheet (c) a flat tissue (d) a zigzag-folded sheet
34. 34.🌉 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
35. 35.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a round pillar (c) an old stone bridge (d) an electric tower
36. 36.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
37. 37.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) arches and domes (c) tubes
38. 38.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) only water (d) fewer coins
39. 39.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) not at all (c) less (d) more
40. 40.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) paper with folded edges (c) a torn flat sheet (d) a U-shaped channel

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