Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 418 · 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 shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the star (c) the square (d) the heart shape
2. 2.⚖️ 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
3. 3.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a U-shaped channel (c) one flat sheet (d) rolled paper tubes
4. 4.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) the same number of (c) fewer (d) more
5. 5.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) fewer coins (c) only water (d) more coins
6. 6.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
7. 7.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
8. 8.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) triangles (c) arches and domes
9. 9.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) coins it holds (c) the kind of coins (d) the gap between books
10. 10.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it stiffer (c) folds make it wet (d) folds add glue
11. 11.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
12. 12.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) two books (c) sheets of paper (d) a magnet
13. 13.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the kind of coins (c) the shape of the paper
14. 14.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
15. 15.True or false: two books is not needed for the paper bridge. (a) True (b) False
16. 16.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a mirror (c) coins (d) two books
17. 17.🧺 Which of these is not needed for the paper bridge? (a) a balloon (b) a ruler (c) coins (d) two books
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a magnet (c) sheets of paper (d) two books
19. 19.True or false: a roof frame gets its strength from a tube shape. (a) True (b) False
20. 20.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) a round pillar (c) an electric tower (d) an eggshell
21. 21.🔍 Which is the odd one out? (a) rolled paper tubes (b) a U-shaped channel (c) one flat sheet (d) paper with folded edges
22. 22.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
23. 23.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) tubes (c) triangles
24. 24.True or false: a flat tissue makes a strong bridge. (a) False (b) True
25. 25.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a flat tissue (c) a wet flat sheet (d) a U-shaped channel
26. 26.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a mirror (c) sheets of paper (d) coins
27. 27.🏗️ Which of these gets its strength from arches or domes? (a) an eggshell (b) a hollow bird bone (c) a bamboo pole (d) a round pillar
28. 28.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a roof frame (c) a round pillar (d) an old stone bridge
29. 29.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a wet flat sheet (c) a zigzag-folded sheet (d) a flat tissue
30. 30.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) where coins are placed (c) the shape of the paper (d) the kind of coins
31. 31.True or false: yeast is needed for the paper bridge. (a) False (b) True
32. 32.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) coins (c) a battery cell (d) a balloon
33. 33.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) triangles (c) tubes
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a battery cell (c) coins (d) sheets of paper
35. 35.🔍 Which is the odd one out? (a) a torn flat sheet (b) a U-shaped channel (c) a zigzag-folded sheet (d) rolled paper tubes
36. 36.True or false: one flat sheet makes a strong bridge. (a) True (b) False
37. 37.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it floats up (c) it sags and falls (d) it gets stronger
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) sheets of paper (d) a balloon
39. 39.🧺 Which of these is not needed for the paper bridge? (a) yeast (b) two books (c) coins (d) sheets of paper
40. 40.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a magnet (c) a ruler (d) turmeric powder

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