Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 545 · 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 bridge truss get its strength from? (a) tubes (b) arches and domes (c) triangles
2. 2.🔍 Which is the odd one out? (a) a U-shaped channel (b) one flat sheet (c) a wet flat sheet (d) a flat tissue
3. 3.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a hollow bird bone (c) a temple dome (d) a round pillar
4. 4.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) fewer (d) more
5. 5.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) turmeric powder (d) sheets of paper
7. 7.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) arches and domes (c) triangles
8. 8.🌉 Which of these makes a strong bridge? (a) a U-shaped channel (b) a wet flat sheet (c) a flat tissue (d) a torn flat sheet
9. 9.🔍 Which is the odd one out? (a) a U-shaped channel (b) rolled paper tubes (c) a wet flat sheet (d) a zigzag-folded sheet
10. 10.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) skip washing (d) wash your hands
11. 11.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) a mirror (d) a ruler
12. 12.🔺 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
13. 13.🧺 Which of these is not needed for the paper bridge? (a) a balloon (b) sheets of paper (c) two books (d) coins
14. 14.True or false: a bridge truss gets its strength from a tube shape. (a) True (b) False
15. 15.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
16. 16.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) a bridge truss (c) a temple dome (d) an old stone bridge
17. 17.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) the kind of coins (c) coins it holds (d) where coins are placed
18. 18.🔍 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
19. 19.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the shape of the paper (b) the gap between books (c) coins it holds (d) where coins are placed
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) two books (d) a balloon
21. 21.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) a battery cell (d) a ruler
22. 22.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we change it (c) we keep it the same
23. 23.🔍 Which is the odd one out? (a) one flat sheet (b) a wet flat sheet (c) a zigzag-folded sheet (d) a flat tissue
24. 24.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
25. 25.🏗️ Where does an electric tower get its strength from? (a) triangles (b) tubes (c) arches and domes
26. 26.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
27. 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a battery cell (d) coins
28. 28.True or false: a roof frame gets its strength from triangles. (a) False (b) True
29. 29.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we keep it the same (b) we measure it (c) we change it
30. 30.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) upward (c) not at all (d) more
31. 31.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) one flat sheet (d) paper with folded edges
32. 32.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
33. 33.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we measure it (c) we keep it the same
34. 34.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
35. 35.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
36. 36.True or false: one flat sheet makes a weak bridge. (a) False (b) True
37. 37.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) triangles (c) tubes
38. 38.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) rolled paper tubes (c) a U-shaped channel (d) a torn flat sheet
39. 39.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
40. 40.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a mirror (c) a ruler (d) a magnet

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