Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 573 · 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 is the odd one out? (a) a torn flat sheet (b) one flat sheet (c) a wet flat sheet (d) a U-shaped channel
2. 2.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a temple dome (c) a bridge truss (d) an old stone bridge
3. 3.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) the kind of paper
4. 4.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a balloon (c) coins (d) yeast
5. 5.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) a balloon (d) sheets of paper
6. 6.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
7. 7.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
8. 8.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a temple dome (c) a round pillar (d) a roof frame
9. 9.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) a U-shaped channel (d) a torn flat sheet
10. 10.🧺 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
11. 11.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) paper with folded edges (c) a flat tissue (d) rolled paper tubes
12. 12.🔍 Which is the odd one out? (a) paper with folded edges (b) rolled paper tubes (c) a zigzag-folded sheet (d) one flat sheet
13. 13.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) only water (c) more coins (d) fewer coins
14. 14.True or false: one flat sheet makes a weak bridge. (a) False (b) True
15. 15.True or false: a bridge truss gets its strength from arches or domes. (a) True (b) False
16. 16.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) skip washing (c) lick your fingers (d) rub your eyes
17. 17.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) a battery cell (c) a magnet (d) turmeric powder
18. 18.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
19. 19.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
20. 20.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) fewer (c) zero (d) more
21. 21.🌉 Which of these makes a weak bridge? (a) a torn flat sheet (b) paper with folded edges (c) a zigzag-folded sheet (d) a U-shaped channel
22. 22.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) triangles (c) tubes
23. 23.⚖️ 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
24. 24.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on top of a pet (c) high and wobbly (d) on a stool edge
25. 25.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) less (c) more (d) not at all
26. 26.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
27. 27.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) where coins are placed
28. 28.True or false: yeast is needed for the paper bridge. (a) False (b) True
29. 29.True or false: turmeric powder is not needed for the paper bridge. (a) True (b) False
30. 30.🏗️ Where does a temple dome get its strength from? (a) tubes (b) arches and domes (c) triangles
31. 31.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
32. 32.🏗️ Where does a roof frame get its strength from? (a) tubes (b) arches and domes (c) triangles
33. 33.True or false: paper with folded edges makes a weak bridge. (a) True (b) False
34. 34.True or false: a temple dome gets its strength from triangles. (a) True (b) False
35. 35.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) a bamboo pole (c) a round pillar (d) a roof frame
36. 36.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) two books (c) sheets of paper (d) coins
37. 37.True or false: a wet flat sheet makes a weak bridge. (a) True (b) False
38. 38.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) where coins are placed (c) the shape of the paper (d) the kind of coins
39. 39.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
40. 40.🌉 Which of these makes a strong bridge? (a) paper with folded edges (b) a torn flat sheet (c) one flat sheet (d) a flat tissue

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