Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 90 · 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.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
2. 2.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a balloon (c) sheets of paper (d) coins
3. 3.🔺 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 heart shape (d) the triangle
4. 4.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) True (b) False
5. 5.🧺 Which of these is needed for the paper bridge? (a) coins (b) a magnet (c) turmeric powder (d) a balloon
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) turmeric powder (d) a ruler
7. 7.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we measure it (c) we keep it the same
8. 8.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we change it (c) we keep it the same
9. 9.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) True (b) False
10. 10.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) a bridge truss (c) an old stone bridge (d) a bamboo pole
11. 11.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) on a stool edge (d) low and steady
12. 12.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
13. 13.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds add glue (c) folds make it stiffer (d) folds make it wet
14. 14.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a battery cell (c) two books (d) sheets of paper
15. 15.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
16. 16.True or false: coins is not needed for the paper bridge. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) a U-shaped channel (b) one flat sheet (c) a torn flat sheet (d) a wet flat sheet
18. 18.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
19. 19.🔍 Which is the odd one out? (a) one flat sheet (b) a U-shaped channel (c) a zigzag-folded sheet (d) rolled paper tubes
20. 20.🏗️ Which of these gets its strength from a tube shape? (a) a hollow bird bone (b) an eggshell (c) a bridge truss (d) a roof frame
21. 21.⚖️ 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
22. 22.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we change it (c) we measure it
23. 23.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) yeast (c) a balloon (d) a ruler
24. 24.🔍 Which is the odd one out? (a) rolled paper tubes (b) a U-shaped channel (c) a wet flat sheet (d) a zigzag-folded sheet
25. 25.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a round pillar (c) an old stone bridge (d) a bridge truss
26. 26.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) arches and domes (c) triangles
27. 27.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a magnet (c) coins (d) sheets of paper
28. 28.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) not at all (c) upward (d) more
29. 29.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
30. 30.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) False (b) True
31. 31.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) a mirror (c) yeast (d) a magnet
32. 32.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
33. 33.⚖️ 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 keep it the same (c) we change it
34. 34.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
35. 35.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) the shape of the paper (c) the gap between books (d) the kind of coins
36. 36.True or false: a balloon is not needed for the paper bridge. (a) True (b) False
37. 37.True or false: an old stone bridge gets its strength from a tube shape. (a) False (b) True
38. 38.🏗️ Where does an eggshell get its strength from? (a) tubes (b) arches and domes (c) triangles
39. 39.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) two books (c) a battery cell (d) turmeric powder
40. 40.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) triangles (c) tubes

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