Paper Bridge STEM Challenge Worksheet

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

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