Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 912 · 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.🏗️ Where does a temple dome get its strength from? (a) tubes (b) triangles (c) arches and domes
2. 2.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) not at all (c) less (d) upward
3. 3.True or false: coins is not needed for the paper bridge. (a) True (b) False
4. 4.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) True (b) False
5. 5.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) turmeric powder (c) two books (d) coins
6. 6.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) coins (c) yeast (d) two books
7. 7.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) yeast (c) sheets of paper (d) two books
8. 8.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
9. 9.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a U-shaped channel (c) one flat sheet (d) a wet flat sheet
10. 10.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the heart shape (c) the star (d) the square
11. 11.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a zigzag-folded sheet (c) rolled paper tubes (d) one flat sheet
12. 12.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) a wet flat sheet (b) a U-shaped channel (c) paper with folded edges (d) a zigzag-folded sheet
14. 14.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) triangles (c) tubes
15. 15.True or false: paper with folded edges makes a strong bridge. (a) True (b) False
16. 16.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) wash your hands (c) skip washing (d) lick your fingers
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) False (b) True
18. 18.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
19. 19.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) triangles (c) arches and domes
20. 20.True or false: coins is needed for the paper bridge. (a) False (b) True
21. 21.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
22. 22.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) more coins (c) the same coins (d) only water
23. 23.True or false: one flat sheet makes a weak bridge. (a) True (b) False
24. 24.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False
25. 25.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) rolled paper tubes (c) one flat sheet (d) a flat tissue
26. 26.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on top of a pet (c) on a stool edge (d) high and wobbly
27. 27.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a round pillar (c) an electric tower (d) a temple dome
28. 28.True or false: one flat sheet makes a strong bridge. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) a flat tissue (b) a wet flat sheet (c) paper with folded edges (d) a torn flat sheet
30. 30.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) where coins are placed (c) the shape of the paper
31. 31.🏗️ Which of these gets its strength from a tube shape? (a) a hollow bird bone (b) an electric tower (c) an old stone bridge (d) a temple dome
32. 32.True or false: an electric tower gets its strength from a tube shape. (a) True (b) False
33. 33.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
34. 34.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it sags and falls (c) it floats up (d) it turns to card
35. 35.True or false: a bridge truss gets its strength from arches or domes. (a) False (b) True
36. 36.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
37. 37.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) turmeric powder (c) a magnet (d) a ruler
38. 38.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we keep it the same (c) we measure it
39. 39.⚖️ 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 change it (c) we measure it
40. 40.True or false: yeast is not needed for the paper bridge. (a) False (b) True

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