Paper Bridge STEM Challenge Worksheet

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

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