Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 953 · 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 is the odd one out? (a) rolled paper tubes (b) a U-shaped channel (c) a zigzag-folded sheet (d) one flat sheet
2. 2.True or false: an eggshell gets its strength from arches or domes. (a) True (b) False
3. 3.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we measure it (c) we keep it the same
4. 4.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
5. 5.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a bridge truss (c) a temple dome (d) a round pillar
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) sheets of paper (d) turmeric powder
7. 7.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
8. 8.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds make it stiffer (c) folds are magnetic (d) folds add glue
9. 9.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) a zigzag-folded sheet (c) paper with folded edges (d) a U-shaped channel
10. 10.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) the gap between books (c) where coins are placed (d) coins it holds
11. 11.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) wash your hands (c) skip washing (d) lick your fingers
12. 12.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
13. 13.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False
14. 14.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) coins (c) two books (d) a ruler
15. 15.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the shape of the paper (b) where coins are placed (c) the gap between books (d) the kind of paper
16. 16.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
17. 17.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we keep it the same (b) we measure it (c) we change it
18. 18.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
19. 19.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
20. 20.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) a round pillar (c) a temple dome (d) a bridge truss
21. 21.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) the same number of (c) fewer (d) zero
22. 22.True or false: an old stone bridge gets its strength from triangles. (a) True (b) False
23. 23.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) yeast (d) two books
24. 24.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) more coins (c) the same coins (d) only water
25. 25.⚖️ 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 change it (c) we keep it the same
26. 26.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
27. 27.True or false: yeast is needed for the paper bridge. (a) True (b) False
28. 28.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) a U-shaped channel (c) a zigzag-folded sheet (d) paper with folded edges
29. 29.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
30. 30.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) yeast (c) a magnet (d) coins
31. 31.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
32. 32.🔍 Which is the odd one out? (a) a torn flat sheet (b) paper with folded edges (c) one flat sheet (d) a wet flat sheet
33. 33.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) not at all (c) upward (d) less
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) a magnet (d) two books
35. 35.⚖️ 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 measure it (c) we change it
36. 36.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) an eggshell (c) a temple dome (d) an electric tower
37. 37.True or false: a round pillar gets its strength from triangles. (a) True (b) False
38. 38.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) an electric tower (c) a round pillar (d) a bridge truss
39. 39.True or false: an electric tower gets its strength from a tube shape. (a) False (b) True
40. 40.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) arches and domes (c) tubes

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