Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 702 · 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.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds make it stiffer (c) folds are magnetic (d) folds add glue
2. 2.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) a balloon (d) sheets of paper
3. 3.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
4. 4.True or false: a magnet is needed for the paper bridge. (a) False (b) True
5. 5.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) arches and domes (c) tubes
6. 6.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a zigzag-folded sheet (c) a torn flat sheet (d) a U-shaped channel
7. 7.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we measure it (c) we change it
8. 8.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) fewer coins (d) more coins
9. 9.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
10. 10.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) False (b) True
11. 11.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
12. 12.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) the same number of (c) zero (d) fewer
13. 13.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) arches and domes (c) triangles
14. 14.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) one flat sheet (c) paper with folded edges (d) a zigzag-folded sheet
15. 15.True or false: a roof frame gets its strength from triangles. (a) True (b) False
16. 16.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
17. 17.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) rub your eyes (c) lick your fingers (d) wash your hands
18. 18.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) yeast (c) a magnet (d) a ruler
19. 19.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) one flat sheet (c) a wet flat sheet (d) a flat tissue
21. 21.True or false: a round pillar gets its strength from arches or domes. (a) True (b) False
22. 22.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we measure it (c) we keep it the same
23. 23.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
24. 24.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
25. 25.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
26. 26.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a U-shaped channel (c) one flat sheet (d) a wet flat sheet
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) True (b) False
28. 28.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we change it (c) we keep it the same
29. 29.True or false: yeast is needed for the paper bridge. (a) True (b) False
30. 30.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) sheets of paper (d) a mirror
31. 31.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) the kind of paper (c) the shape of the paper (d) where coins are placed
32. 32.True or false: a bridge truss gets its strength from arches or domes. (a) False (b) True
33. 33.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) turmeric powder (d) a ruler
34. 34.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a U-shaped channel (c) a zigzag-folded sheet (d) a flat tissue
35. 35.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) coins (d) yeast
36. 36.🏗️ Which of these gets its strength from arches or domes? (a) a temple dome (b) a roof frame (c) a bridge truss (d) a bamboo pole
37. 37.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) a zigzag-folded sheet (d) a torn flat sheet
38. 38.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) low and steady (d) high and wobbly
39. 39.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the triangle (c) the heart shape (d) the square
40. 40.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True

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