Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 311 · 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.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the shape of the paper (b) the kind of paper (c) the kind of coins (d) the gap between books
2. 2.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a bridge truss (c) a temple dome (d) a bamboo pole
3. 3.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) a round pillar (c) an eggshell (d) a bridge truss
4. 4.🧺 Which of these is needed for the paper bridge? (a) two books (b) yeast (c) turmeric powder (d) a magnet
5. 5.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) on a stool edge (c) high and wobbly (d) low and steady
6. 6.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) rub your eyes (c) wash your hands (d) lick your fingers
7. 7.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) yeast (c) two books (d) a ruler
8. 8.⚖️ 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
9. 9.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a wet flat sheet (c) a zigzag-folded sheet (d) a flat tissue
10. 10.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) paper with folded edges (c) a zigzag-folded sheet (d) rolled paper tubes
11. 11.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) a U-shaped channel (d) one flat sheet
12. 12.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
13. 13.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) True (b) False
14. 14.⚖️ 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
15. 15.🔺 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
16. 16.True or false: an eggshell gets its strength from arches or domes. (a) True (b) False
17. 17.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
18. 18.🔍 Which is the odd one out? (a) one flat sheet (b) a flat tissue (c) paper with folded edges (d) a torn flat sheet
19. 19.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) triangles (c) arches and domes
20. 20.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a hollow bird bone (c) a roof frame (d) an electric tower
21. 21.⚖️ 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
22. 22.🔍 Which is the odd one out? (a) one flat sheet (b) rolled paper tubes (c) paper with folded edges (d) a U-shaped channel
23. 23.True or false: one flat sheet makes a weak bridge. (a) False (b) True
24. 24.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
25. 25.True or false: a balloon is not needed for the paper bridge. (a) True (b) False
26. 26.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
27. 27.🔍 Which is the odd one out? (a) a torn flat sheet (b) a wet flat sheet (c) a U-shaped channel (d) one flat sheet
28. 28.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
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 change it (c) we keep it the same
30. 30.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a hollow bird bone (c) a roof frame (d) an old stone bridge
31. 31.True or false: a mirror is not needed for the paper bridge. (a) True (b) False
32. 32.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) a U-shaped channel (c) a zigzag-folded sheet (d) rolled paper tubes
33. 33.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) upward (c) less (d) not at all
34. 34.🌉 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 add glue (d) folds are magnetic
35. 35.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a magnet (c) a ruler (d) yeast
36. 36.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
37. 37.True or false: two books is not needed for the paper bridge. (a) True (b) False
38. 38.True or false: coins is needed for the paper bridge. (a) False (b) True
39. 39.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) the kind of coins (c) coins it holds (d) the shape of the paper
40. 40.True or false: a U-shaped channel makes a strong bridge. (a) True (b) False

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