Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 60 · 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) two books (b) a mirror (c) a ruler (d) coins
2. 2.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds are magnetic (c) folds make it wet (d) folds add glue
3. 3.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a mirror (c) a ruler (d) a balloon
4. 4.🧺 Which of these is not needed for the paper bridge? (a) coins (b) two books (c) sheets of paper (d) a battery cell
5. 5.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a ruler (d) a battery cell
6. 6.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) False (b) True
7. 7.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) sheets of paper (d) yeast
9. 9.🔍 Which is the odd one out? (a) one flat sheet (b) a U-shaped channel (c) paper with folded edges (d) a zigzag-folded sheet
10. 10.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) one flat sheet (c) a U-shaped channel (d) a zigzag-folded sheet
11. 11.⚖️ 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) the kind of coins (c) where coins are placed (d) coins it holds
12. 12.True or false: a balloon is not needed for the paper bridge. (a) True (b) False
13. 13.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) tubes (c) arches and domes
14. 14.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a flat tissue (c) a U-shaped channel (d) a zigzag-folded sheet
15. 15.🥚 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) its curved arch shape (d) it is very hot
16. 16.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we keep it the same (b) we change it (c) we measure it
17. 17.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
18. 18.⚖️ 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
19. 19.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) paper with folded edges (c) a torn flat sheet (d) a U-shaped channel
21. 21.True or false: paper with folded edges makes a strong bridge. (a) True (b) False
22. 22.⚖️ 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
23. 23.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) skip washing (d) lick your fingers
24. 24.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) an eggshell (c) a roof frame (d) a round pillar
25. 25.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) False (b) True
26. 26.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a zigzag-folded sheet (c) a torn flat sheet (d) one flat sheet
27. 27.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
28. 28.🏗️ Which of these gets its strength from arches or domes? (a) an old stone bridge (b) a hollow bird bone (c) a bridge truss (d) a roof frame
29. 29.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) low and steady (c) high and wobbly (d) on top of a pet
30. 30.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) paper with folded edges (c) rolled paper tubes (d) a flat tissue
31. 31.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a mirror (c) sheets of paper (d) yeast
32. 32.🧺 Which of these is not needed for the paper bridge? (a) two books (b) turmeric powder (c) sheets of paper (d) coins
33. 33.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a balloon (d) coins
34. 34.🏗️ Where does a temple dome get its strength from? (a) triangles (b) tubes (c) arches and domes
35. 35.True or false: one flat sheet makes a weak bridge. (a) False (b) True
36. 36.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a balloon (c) coins (d) a battery cell
37. 37.True or false: coins is needed for the paper bridge. (a) True (b) False
38. 38.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) fewer coins (c) more coins (d) only water
39. 39.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a wet flat sheet (c) a zigzag-folded sheet (d) paper with folded edges
40. 40.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a flat tissue (c) one flat sheet (d) paper with folded edges

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