Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 817 · 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 is needed for the paper bridge? (a) a magnet (b) turmeric powder (c) yeast (d) a ruler
2. 2.🛟 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
3. 3.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a U-shaped channel (c) a flat tissue (d) rolled paper tubes
4. 4.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) the same number of (d) zero
5. 5.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
6. 6.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) triangles (c) tubes
7. 7.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) coins (d) a balloon
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) a mirror (d) two books
9. 9.⚖️ 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 keep it the same (c) we change it
10. 10.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a bridge truss (c) an old stone bridge (d) a roof frame
11. 11.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) where coins are placed (c) the shape of the paper (d) coins it holds
12. 12.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we keep it the same (b) we measure it (c) we change it
13. 13.🔍 Which is the odd one out? (a) rolled paper tubes (b) a zigzag-folded sheet (c) a wet flat sheet (d) paper with folded edges
14. 14.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) yeast (d) coins
15. 15.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is magnetic (c) it is made of steel (d) its curved arch shape
16. 16.True or false: a bamboo pole gets its strength from arches or domes. (a) True (b) False
17. 17.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) an eggshell (c) a bamboo pole (d) a bridge truss
18. 18.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) a torn flat sheet (b) a flat tissue (c) paper with folded edges (d) one flat sheet
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) two books (c) a ruler (d) coins
21. 21.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a zigzag-folded sheet (c) one flat sheet (d) a wet flat sheet
22. 22.🔍 Which is the odd one out? (a) rolled paper tubes (b) a U-shaped channel (c) a zigzag-folded sheet (d) a flat tissue
23. 23.True or false: a temple dome gets its strength from triangles. (a) True (b) False
24. 24.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) an old stone bridge (c) a bridge truss (d) a temple dome
25. 25.True or false: turmeric powder is not needed for the paper bridge. (a) True (b) False
26. 26.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) a U-shaped channel (c) a zigzag-folded sheet (d) paper with folded edges
27. 27.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
28. 28.🌉 Which of these makes a weak bridge? (a) a torn flat sheet (b) a U-shaped channel (c) rolled paper tubes (d) paper with folded edges
29. 29.True or false: a battery cell is needed for the paper bridge. (a) True (b) False
30. 30.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
31. 31.True or false: a mirror is not needed for the paper bridge. (a) True (b) False
32. 32.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (a) False (b) True
33. 33.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a U-shaped channel (c) a wet flat sheet (d) a zigzag-folded sheet
34. 34.🧺 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
35. 35.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True
36. 36.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) triangles (c) tubes
37. 37.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a U-shaped channel (c) a flat tissue (d) one flat sheet
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) a balloon (d) sheets of paper
39. 39.⚖️ 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
40. 40.True or false: one flat sheet makes a strong bridge. (a) False (b) True

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