Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 101 · 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 makes a weak bridge? (a) a zigzag-folded sheet (b) paper with folded edges (c) rolled paper tubes (d) a wet flat sheet
2. 2.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) a mirror (d) sheets of paper
3. 3.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) a hollow bird bone (c) an old stone bridge (d) a roof frame
4. 4.🏗️ 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
5. 5.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) False (b) True
6. 6.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a mirror (c) coins (d) a magnet
7. 7.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) an eggshell (c) a bridge truss (d) a bamboo pole
8. 8.True or false: a round pillar gets its strength from arches or domes. (a) True (b) False
9. 9.True or false: two books is needed for the paper bridge. (a) True (b) False
10. 10.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we keep it the same (c) we measure it
11. 11.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) one flat sheet (c) a zigzag-folded sheet (d) rolled paper tubes
12. 12.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) arches and domes (c) triangles
13. 13.🔺 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 triangle (d) the heart shape
14. 14.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it wet (c) folds are magnetic (d) folds make it stiffer
15. 15.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we keep it the same (c) we change it
16. 16.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a ruler (d) yeast
17. 17.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) coins (d) a magnet
19. 19.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) two books (d) a magnet
20. 20.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
21. 21.🔍 Which is the odd one out? (a) one flat sheet (b) a wet flat sheet (c) a torn flat sheet (d) a U-shaped channel
22. 22.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a ruler (c) sheets of paper (d) a mirror
23. 23.🌉 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
24. 24.True or false: yeast is not needed for the paper bridge. (a) True (b) False
25. 25.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is made of steel (c) it is very hot (d) it is magnetic
26. 26.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
27. 27.True or false: two books is not needed for the paper bridge. (a) False (b) True
28. 28.True or false: an electric tower gets its strength from a tube shape. (a) True (b) False
29. 29.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
30. 30.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) False (b) True
31. 31.⚖️ 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 change it (c) we measure it
32. 32.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we keep it the same (c) we measure it
33. 33.⚖️ 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
34. 34.🔍 Which is the odd one out? (a) a torn flat sheet (b) a wet flat sheet (c) a zigzag-folded sheet (d) one flat sheet
35. 35.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a ruler (c) a magnet (d) a mirror
36. 36.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
37. 37.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
38. 38.⚖️ 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
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
40. 40.🧺 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) turmeric powder

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