Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 138 · 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 not needed for the paper bridge. (a) False (b) True
2. 2.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we change it (c) we measure it
3. 3.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it wet (c) folds add glue (d) folds make it stiffer
4. 4.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
5. 5.True or false: a U-shaped channel makes a strong bridge. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) a U-shaped channel (b) paper with folded edges (c) a flat tissue (d) rolled paper tubes
7. 7.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) lick your fingers (d) wash your hands
8. 8.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) a U-shaped channel (d) a wet flat sheet
9. 9.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) a magnet (d) two books
10. 10.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
11. 11.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
12. 12.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) an electric tower (c) an old stone bridge (d) a roof frame
13. 13.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
14. 14.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) a round pillar (c) a temple dome (d) an electric tower
15. 15.True or false: a flat tissue makes a strong bridge. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) a U-shaped channel (b) paper with folded edges (c) a torn flat sheet (d) rolled paper tubes
17. 17.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) paper with folded edges (d) a wet flat sheet
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) sheets of paper (c) two books (d) coins
19. 19.🔍 Which is the odd one out? (a) a torn flat sheet (b) one flat sheet (c) a zigzag-folded sheet (d) a flat tissue
20. 20.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
21. 21.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) low and steady (c) on a stool edge (d) high and wobbly
22. 22.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
23. 23.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
24. 24.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the kind of paper (c) the kind of coins (d) the shape of the paper
25. 25.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) a zigzag-folded sheet (c) paper with folded edges (d) a U-shaped channel
26. 26.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
27. 27.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a torn flat sheet (c) a U-shaped channel (d) a zigzag-folded sheet
28. 28.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True
29. 29.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
30. 30.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
31. 31.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the square (c) the heart shape (d) the star
32. 32.True or false: a roof frame gets its strength from triangles. (a) True (b) False
33. 33.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) triangles (c) tubes
34. 34.🔍 Which is the odd one out? (a) paper with folded edges (b) a zigzag-folded sheet (c) one flat sheet (d) rolled paper tubes
35. 35.⚖️ 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
36. 36.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) one flat sheet (c) rolled paper tubes (d) a U-shaped channel
37. 37.🏗️ Where does an electric tower get its strength from? (a) tubes (b) triangles (c) arches and domes
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) sheets of paper (c) a ruler (d) two books
39. 39.True or false: a mirror is needed for the paper bridge. (a) True (b) False
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a mirror (d) coins

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