Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 504 · 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.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
2. 2.True or false: a bridge truss gets its strength from a tube shape. (a) True (b) False
3. 3.🛟 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
4. 4.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) False (b) True
5. 5.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a mirror (c) a ruler (d) sheets of paper
6. 6.🏗️ Which of these gets its strength from triangles? (a) an electric tower (b) a hollow bird bone (c) a temple dome (d) a bamboo pole
7. 7.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
8. 8.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a wet flat sheet (c) a U-shaped channel (d) a flat tissue
9. 9.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it stiffer (c) folds make it wet (d) folds are magnetic
10. 10.🏗️ Where does an electric tower get its strength from? (a) triangles (b) tubes (c) arches and domes
11. 11.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) True (b) False
12. 12.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) only water (d) fewer coins
13. 13.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
14. 14.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
15. 15.🌉 Which of these makes a strong bridge? (a) paper with folded edges (b) a flat tissue (c) a wet flat sheet (d) a torn flat sheet
16. 16.⚖️ 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
17. 17.True or false: a mirror is needed for the paper bridge. (a) False (b) True
18. 18.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) where coins are placed (c) the shape of the paper
19. 19.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) coins it holds (c) the shape of the paper (d) the gap between books
20. 20.🏗️ Where does a roof frame get its strength from? (a) triangles (b) tubes (c) arches and domes
21. 21.🔮 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
22. 22.🏗️ Where does a round pillar get its strength from? (a) tubes (b) arches and domes (c) triangles
23. 23.True or false: a temple dome gets its strength from arches or domes. (a) False (b) True
24. 24.🏗️ Where does an eggshell get its strength from? (a) tubes (b) triangles (c) arches and domes
25. 25.🏗️ Which of these gets its strength from triangles? (a) a roof frame (b) a hollow bird bone (c) a bamboo pole (d) a round pillar
26. 26.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) two books (c) sheets of paper (d) yeast
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) False (b) True
28. 28.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) one flat sheet (c) a zigzag-folded sheet (d) rolled paper tubes
29. 29.True or false: an eggshell gets its strength from a tube shape. (a) True (b) False
30. 30.True or false: a roof frame gets its strength from triangles. (a) False (b) True
31. 31.True or false: a round pillar gets its strength from a tube shape. (a) True (b) False
32. 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) yeast (c) coins (d) two books
33. 33.True or false: yeast is needed for the paper bridge. (a) True (b) False
34. 34.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a wet flat sheet (c) paper with folded edges (d) a U-shaped channel
35. 35.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) an old stone bridge (c) an electric tower (d) a hollow bird bone
36. 36.⚖️ 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
37. 37.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) a round pillar (c) a bridge truss (d) a temple dome
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) turmeric powder (d) coins
39. 39.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it turns to card (c) it gets stronger (d) it sags and falls
40. 40.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) coins (c) sheets of paper (d) turmeric powder

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