Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 821 · 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 needed for the paper bridge? (a) a balloon (b) yeast (c) a ruler (d) a magnet
2. 2.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a torn flat sheet (d) rolled paper tubes
3. 3.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a ruler (c) a magnet (d) sheets of paper
4. 4.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) the same number of (c) more (d) fewer
5. 5.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds are magnetic (c) folds make it stiffer (d) folds add glue
6. 6.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) a balloon (d) a ruler
7. 7.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) paper with folded edges (c) one flat sheet (d) a flat tissue
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) turmeric powder (c) sheets of paper (d) a ruler
9. 9.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) a balloon (d) two books
10. 10.🔍 Which is the odd one out? (a) one flat sheet (b) paper with folded edges (c) a U-shaped channel (d) a zigzag-folded sheet
11. 11.🏗️ Where does a round pillar get its strength from? (a) triangles (b) tubes (c) arches and domes
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) yeast (c) coins (d) a ruler
13. 13.True or false: a bamboo pole gets its strength from triangles. (a) False (b) True
14. 14.⚖️ 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
15. 15.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) wash your hands (c) lick your fingers (d) skip washing
16. 16.🏗️ Where does an eggshell get its strength from? (a) tubes (b) arches and domes (c) triangles
17. 17.🏗️ Where does a roof frame get its strength from? (a) triangles (b) arches and domes (c) tubes
18. 18.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) yeast (c) two books (d) coins
19. 19.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
20. 20.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
21. 21.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
22. 22.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) the gap between books (c) the kind of paper (d) the shape of the paper
23. 23.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
24. 24.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) a bridge truss (c) a roof frame (d) a round pillar
25. 25.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a bridge truss (c) an eggshell (d) a bamboo pole
26. 26.⚖️ 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
27. 27.🏗️ Where does an old stone bridge get its strength from? (a) arches and domes (b) triangles (c) tubes
28. 28.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) high and wobbly (c) on a stool edge (d) low and steady
29. 29.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
30. 30.🔺 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
31. 31.True or false: two books is needed for the paper bridge. (a) True (b) False
32. 32.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
33. 33.True or false: a balloon is needed for the paper bridge. (a) False (b) True
34. 34.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) not at all (c) more (d) less
35. 35.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) tubes (c) triangles
36. 36.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
37. 37.True or false: a magnet is needed for the paper bridge. (a) True (b) False
38. 38.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) paper with folded edges (d) a torn flat sheet
40. 40.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) an old stone bridge (c) a temple dome (d) a bamboo pole

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