Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 724 · 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 hollow bird bone get its strength from? (a) arches and domes (b) triangles (c) tubes
2. 2.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a round pillar (c) an eggshell (d) an electric tower
3. 3.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) one flat sheet (c) a flat tissue (d) a torn flat sheet
4. 4.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
5. 5.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) coins it holds (c) the shape of the paper (d) the kind of paper
6. 6.🔍 Which is the odd one out? (a) rolled paper tubes (b) a U-shaped channel (c) one flat sheet (d) a zigzag-folded sheet
7. 7.🛟 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
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a ruler (d) turmeric powder
9. 9.True or false: an eggshell gets its strength from triangles. (a) True (b) False
10. 10.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
11. 11.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) arches and domes (c) triangles
12. 12.🏗️ Where does a roof frame get its strength from? (a) tubes (b) arches and domes (c) triangles
13. 13.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) sheets of paper (d) a battery cell
14. 14.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) upward (c) more (d) not at all
15. 15.🔍 Which is the odd one out? (a) paper with folded edges (b) rolled paper tubes (c) a wet flat sheet (d) a U-shaped channel
16. 16.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we keep it the same (b) we change it (c) we measure it
17. 17.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a magnet (c) sheets of paper (d) a ruler
18. 18.⚖️ 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
19. 19.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) only water (c) more coins (d) fewer coins
20. 20.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
21. 21.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
22. 22.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) the gap between books
23. 23.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
24. 24.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a ruler (c) a balloon (d) a magnet
25. 25.True or false: coins is not needed for the paper bridge. (a) True (b) False
26. 26.True or false: a flat tissue makes a strong bridge. (a) False (b) True
27. 27.🏗️ Which of these gets its strength from a tube shape? (a) a bamboo pole (b) a bridge truss (c) an eggshell (d) an electric tower
28. 28.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a ruler (c) coins (d) yeast
29. 29.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds are magnetic (c) folds make it stiffer (d) folds make it wet
30. 30.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it floats up (c) it sags and falls (d) it turns to card
31. 31.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) yeast (c) coins (d) a balloon
32. 32.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we keep it the same (c) we measure it
33. 33.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
34. 34.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
35. 35.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a hollow bird bone (c) an electric tower (d) a round pillar
36. 36.True or false: a flat tissue makes a weak bridge. (a) True (b) False
37. 37.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
38. 38.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) False (b) True
40. 40.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed

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