Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 272 · 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: rolled paper tubes makes a weak bridge. (a) True (b) False
2. 2.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) its curved arch shape (c) it is very hot (d) it is magnetic
3. 3.True or false: an eggshell gets its strength from arches or domes. (a) False (b) True
4. 4.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) triangles (c) arches and domes
5. 5.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) a balloon (c) a mirror (d) turmeric powder
6. 6.True or false: one flat sheet makes a weak bridge. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) a flat tissue (b) a zigzag-folded sheet (c) rolled paper tubes (d) paper with folded edges
8. 8.⚖️ 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
9. 9.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a torn flat sheet (c) a flat tissue (d) paper with folded edges
10. 10.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a balloon (c) two books (d) sheets of paper
11. 11.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) high and wobbly (c) low and steady (d) on a stool edge
12. 12.🏗️ Which of these gets its strength from triangles? (a) an electric tower (b) a round pillar (c) an old stone bridge (d) a hollow bird bone
13. 13.True or false: a roof frame gets its strength from arches or domes. (a) True (b) False
14. 14.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a magnet (c) coins (d) two books
15. 15.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) skip washing (c) lick your fingers (d) rub your eyes
16. 16.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
17. 17.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
18. 18.🔍 Which is the odd one out? (a) a torn flat sheet (b) one flat sheet (c) a flat tissue (d) a zigzag-folded sheet
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) turmeric powder (c) sheets of paper (d) coins
20. 20.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it stiffer (c) folds are magnetic (d) folds make it wet
21. 21.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we keep it the same (c) we measure it
22. 22.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a U-shaped channel (c) a torn flat sheet (d) one flat sheet
23. 23.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
24. 24.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it gets stronger (c) it floats up (d) it sags and falls
25. 25.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
26. 26.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) less (c) not at all (d) more
27. 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) yeast (c) two books (d) sheets of paper
28. 28.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) coins it holds (c) the shape of the paper (d) the kind of paper
29. 29.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) an old stone bridge (c) a bridge truss (d) a bamboo pole
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) a balloon (d) sheets of paper
31. 31.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) coins (c) a ruler (d) two books
32. 32.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
33. 33.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) rolled paper tubes (c) one flat sheet (d) a torn flat sheet
34. 34.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a wet flat sheet (c) a U-shaped channel (d) rolled paper tubes
35. 35.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a zigzag-folded sheet (c) a U-shaped channel (d) a torn flat sheet
36. 36.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) tubes (c) triangles
37. 37.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
38. 38.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
39. 39.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) an electric tower (c) a bridge truss (d) an old stone bridge
40. 40.⚖️ 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

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