Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 543 · 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 round pillar get its strength from? (a) arches and domes (b) triangles (c) tubes
2. 2.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on top of a pet (c) high and wobbly (d) on a stool edge
3. 3.🏗️ Where does a temple dome get its strength from? (a) arches and domes (b) tubes (c) triangles
4. 4.⚖️ 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
5. 5.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) yeast (c) two books (d) a ruler
6. 6.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the gap between books (b) the shape of the paper (c) the kind of paper (d) coins it holds
7. 7.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
8. 8.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
9. 9.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) turmeric powder (d) sheets of paper
11. 11.⚖️ 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
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) two books (c) a ruler (d) sheets of paper
13. 13.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
14. 14.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
15. 15.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
16. 16.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
17. 17.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
18. 18.🔍 Which is the odd one out? (a) a wet flat sheet (b) a flat tissue (c) a torn flat sheet (d) rolled paper tubes
19. 19.🛟 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
20. 20.🏗️ Which of these gets its strength from arches or domes? (a) an eggshell (b) a round pillar (c) a bridge truss (d) a hollow bird bone
21. 21.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) only water (d) fewer coins
22. 22.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) an electric tower (c) an old stone bridge (d) a temple dome
23. 23.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
24. 24.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a mirror (c) a battery cell (d) sheets of paper
25. 25.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it wet (c) folds make it stiffer (d) folds add glue
26. 26.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) the shape of the paper (c) coins it holds (d) the kind of coins
27. 27.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) one flat sheet (c) a torn flat sheet (d) a zigzag-folded sheet
28. 28.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
29. 29.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) triangles (c) arches and domes
30. 30.True or false: an old stone bridge gets its strength from a tube shape. (a) False (b) True
31. 31.True or false: one flat sheet makes a strong bridge. (a) False (b) True
32. 32.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
33. 33.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
34. 34.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a ruler (c) sheets of paper (d) turmeric powder
35. 35.True or false: coins is not needed for the paper bridge. (a) True (b) False
36. 36.True or false: a magnet is not needed for the paper bridge. (a) True (b) False
37. 37.⚖️ 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
38. 38.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) paper with folded edges (b) a flat tissue (c) rolled paper tubes (d) a zigzag-folded sheet
40. 40.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) upward (c) not at all (d) more

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