Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 562 · 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 weak bridge? (a) a U-shaped channel (b) one flat sheet (c) rolled paper tubes (d) a zigzag-folded sheet
2. 2.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a torn flat sheet (c) a U-shaped channel (d) a zigzag-folded sheet
3. 3.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) not at all (c) more (d) less
4. 4.🔍 Which is the odd one out? (a) paper with folded edges (b) one flat sheet (c) rolled paper tubes (d) a zigzag-folded sheet
5. 5.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
6. 6.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) more (d) the same number of
7. 7.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
8. 8.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a temple dome (c) a round pillar (d) an electric tower
9. 9.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the star (c) the triangle (d) the heart shape
10. 10.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) arches and domes (c) tubes
11. 11.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on a stool edge (c) on top of a pet (d) high and wobbly
12. 12.🏗️ Which of these gets its strength from a tube shape? (a) a bamboo pole (b) an electric tower (c) an eggshell (d) a temple dome
13. 13.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) lick your fingers (c) skip washing (d) rub your eyes
14. 14.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
15. 15.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds make it wet (c) folds are magnetic (d) folds add glue
16. 16.True or false: a U-shaped channel makes a strong bridge. (a) True (b) False
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) sheets of paper (d) turmeric powder
19. 19.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
20. 20.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) False (b) True
21. 21.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) rolled paper tubes (c) a U-shaped channel (d) paper with folded edges
22. 22.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
23. 23.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
24. 24.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
25. 25.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) a mirror (d) two books
26. 26.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) fewer coins (d) only water
27. 27.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
28. 28.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
29. 29.⚖️ 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
30. 30.⚖️ 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 measure it (c) we change it
31. 31.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) turmeric powder (c) sheets of paper (d) two books
32. 32.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
33. 33.🏗️ Which of these gets its strength from arches or domes? (a) an old stone bridge (b) a round pillar (c) a roof frame (d) a bamboo pole
34. 34.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
35. 35.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) a ruler (c) coins (d) two books
36. 36.True or false: a flat tissue makes a strong bridge. (a) False (b) True
37. 37.True or false: paper with folded edges makes a weak bridge. (a) True (b) False
38. 38.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) an eggshell (c) a bridge truss (d) a hollow bird bone
39. 39.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
40. 40.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) rolled paper tubes (d) a wet flat sheet

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