Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 532 · 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.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) where coins are placed (c) the shape of the paper (d) the kind of paper
2. 2.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) fewer coins (c) only water (d) more coins
3. 3.🥚 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
4. 4.🔺 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
5. 5.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it stiffer (c) folds add glue (d) folds make it wet
6. 6.🌉 Which of these makes a strong bridge? (a) a zigzag-folded sheet (b) a flat tissue (c) a wet flat sheet (d) one flat sheet
7. 7.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) wash your hands (d) skip washing
8. 8.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
9. 9.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
10. 10.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) one flat sheet (c) a flat tissue (d) a wet flat sheet
11. 11.⚖️ 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
12. 12.True or false: a magnet is needed for the paper bridge. (a) False (b) True
13. 13.True or false: a bamboo pole gets its strength from triangles. (a) True (b) False
14. 14.🧺 Which of these is needed for the paper bridge? (a) yeast (b) two books (c) a balloon (d) a magnet
15. 15.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) upward (c) less (d) not at all
16. 16.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) coins (d) turmeric powder
17. 17.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) a temple dome (c) a round pillar (d) an electric tower
18. 18.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
19. 19.True or false: a flat tissue makes a strong bridge. (a) False (b) True
20. 20.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
21. 21.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) coins it holds (c) the gap between books (d) the kind of paper
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) sheets of paper (c) a ruler (d) two books
23. 23.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) paper with folded edges (c) one flat sheet (d) rolled paper tubes
24. 24.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a torn flat sheet (c) rolled paper tubes (d) paper with folded edges
25. 25.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a U-shaped channel (d) a torn flat sheet
26. 26.True or false: two books is not needed for the paper bridge. (a) True (b) False
27. 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a ruler (d) yeast
28. 28.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) an eggshell (c) a bridge truss (d) a bamboo pole
29. 29.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) low and steady (d) on top of a pet
30. 30.🏗️ Which of these gets its strength from triangles? (a) an electric tower (b) a round pillar (c) a temple dome (d) a hollow bird bone
31. 31.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
32. 32.True or false: an electric tower gets its strength from arches or domes. (a) True (b) False
33. 33.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
34. 34.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) arches and domes (c) tubes
35. 35.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
36. 36.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
37. 37.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we keep it the same (c) we measure it
38. 38.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a mirror (c) sheets of paper (d) a battery cell
39. 39.🔍 Which is the odd one out? (a) a torn flat sheet (b) a wet flat sheet (c) one flat sheet (d) a U-shaped channel
40. 40.True or false: a wet flat sheet makes a weak bridge. (a) True (b) False

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