Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 53 · 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.True or false: yeast is needed for the paper bridge. (a) False (b) True
2. 2.True or false: an eggshell gets its strength from arches or domes. (a) False (b) True
3. 3.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a mirror (c) sheets of paper (d) a battery cell
4. 4.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
5. 5.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a battery cell (c) a ruler (d) sheets of paper
6. 6.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) only water (d) fewer coins
7. 7.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) paper with folded edges (c) a zigzag-folded sheet (d) a wet flat sheet
8. 8.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we keep it the same (c) we change it
9. 9.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) more (c) zero (d) fewer
10. 10.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True
11. 11.🧺 Which of these is not needed for the paper bridge? (a) coins (b) two books (c) a ruler (d) yeast
12. 12.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
13. 13.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) skip washing (c) wash your hands (d) rub your eyes
14. 14.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
15. 15.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) where coins are placed (c) the shape of the paper (d) the kind of coins
16. 16.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) triangles (c) tubes
17. 17.True or false: a flat tissue makes a strong bridge. (a) False (b) True
18. 18.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) tubes (c) triangles
19. 19.True or false: paper with folded edges makes a strong bridge. (a) True (b) False
20. 20.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is made of steel (c) it is very hot (d) its curved arch shape
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) a balloon (d) two books
22. 22.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a balloon (c) a battery cell (d) a ruler
23. 23.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a bridge truss (c) a round pillar (d) an old stone bridge
24. 24.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
25. 25.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) turmeric powder (c) two books (d) a ruler
26. 26.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) a flat tissue (b) a torn flat sheet (c) a U-shaped channel (d) a wet flat sheet
29. 29.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it wet (c) folds make it stiffer (d) folds are magnetic
30. 30.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) paper with folded edges (c) one flat sheet (d) a U-shaped channel
31. 31.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) two books (c) a balloon (d) coins
32. 32.True or false: one flat sheet makes a strong bridge. (a) False (b) True
33. 33.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) less (c) more (d) upward
34. 34.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) the kind of coins (c) where coins are placed (d) the shape of the paper
35. 35.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
36. 36.🏗️ Where does a round pillar get its strength from? (a) tubes (b) triangles (c) arches and domes
37. 37.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
38. 38.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) sheets of paper (c) two books (d) a ruler
40. 40.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) one flat sheet (c) rolled paper tubes (d) a torn flat sheet

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