Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 99 · 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.🧺 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
2. 2.True or false: a mirror is not needed for the paper bridge. (a) True (b) False
3. 3.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
4. 4.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a wet flat sheet (c) one flat sheet (d) paper with folded edges
5. 5.True or false: a temple dome gets its strength from a tube shape. (a) True (b) False
6. 6.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) paper with folded edges (c) rolled paper tubes (d) a flat tissue
7. 7.🏗️ Where does an eggshell get its strength from? (a) triangles (b) tubes (c) arches and domes
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a mirror (c) two books (d) coins
9. 9.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) paper with folded edges (c) rolled paper tubes (d) a zigzag-folded sheet
10. 10.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) an eggshell (c) a round pillar (d) a bamboo pole
11. 11.🏗️ Which of these gets its strength from a tube shape? (a) a round pillar (b) a bridge truss (c) an eggshell (d) a temple dome
12. 12.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
13. 13.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the heart shape (c) the star (d) the square
14. 14.True or false: a flat tissue makes a strong bridge. (a) False (b) True
15. 15.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds add glue (c) folds make it stiffer (d) folds make it wet
16. 16.🧺 Which of these is needed for the paper bridge? (a) two books (b) yeast (c) turmeric powder (d) a mirror
17. 17.🔍 Which is the odd one out? (a) paper with folded edges (b) rolled paper tubes (c) a zigzag-folded sheet (d) one flat sheet
18. 18.True or false: yeast is needed for the paper bridge. (a) False (b) True
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) yeast (c) sheets of paper (d) coins
20. 20.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) the same coins (c) only water (d) more coins
21. 21.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we measure it (b) we change it (c) we keep it the same
22. 22.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
23. 23.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a round pillar (c) a bamboo pole (d) a roof frame
24. 24.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) tubes (c) triangles
25. 25.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) turmeric powder (c) two books (d) a ruler
26. 26.True or false: a round pillar gets its strength from triangles. (a) False (b) True
27. 27.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) wash your hands (c) skip washing (d) rub your eyes
28. 28.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) the same number of (d) more
29. 29.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we keep it the same (c) we change it
30. 30.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
31. 31.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
32. 32.🏗️ Where does a temple dome get its strength from? (a) triangles (b) arches and domes (c) tubes
33. 33.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) two books (c) coins (d) a battery cell
34. 34.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) more (c) not at all (d) upward
35. 35.True or false: coins is needed for the paper bridge. (a) False (b) True
36. 36.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
37. 37.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) an old stone bridge (c) an electric tower (d) a hollow bird bone
38. 38.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) low and steady (c) on a stool edge (d) on top of a pet
39. 39.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
40. 40.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) True (b) False

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