Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 217 · 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.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) sheets of paper (d) turmeric powder
2. 2.🔍 Which is the odd one out? (a) a flat tissue (b) paper with folded edges (c) a zigzag-folded sheet (d) rolled paper tubes
3. 3.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the kind of paper (c) the shape of the paper
4. 4.🌉 Which of these makes a strong bridge? (a) a U-shaped channel (b) a wet flat sheet (c) one flat sheet (d) a flat tissue
5. 5.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on a stool edge (c) high and wobbly (d) on top of a pet
6. 6.True or false: an old stone bridge gets its strength from triangles. (a) True (b) False
7. 7.🌉 Which of these makes a strong bridge? (a) a zigzag-folded sheet (b) one flat sheet (c) a wet flat sheet (d) a flat tissue
8. 8.⚖️ 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 gap between books
9. 9.🔍 Which is the odd one out? (a) a torn flat sheet (b) a zigzag-folded sheet (c) one flat sheet (d) a flat tissue
10. 10.⚖️ 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 change it (c) we measure it
11. 11.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) an old stone bridge (c) an eggshell (d) a bamboo pole
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a battery cell (c) coins (d) two books
13. 13.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) more (d) the same number of
14. 14.🔍 Which is the odd one out? (a) a wet flat sheet (b) one flat sheet (c) a flat tissue (d) paper with folded edges
15. 15.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) the kind of coins (c) the gap between books (d) the shape of the paper
16. 16.True or false: a flat tissue makes a weak bridge. (a) True (b) False
17. 17.True or false: an eggshell gets its strength from arches or domes. (a) True (b) False
18. 18.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a bridge truss (c) an old stone bridge (d) a temple dome
19. 19.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) sheets of paper (c) turmeric powder (d) yeast
20. 20.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) rolled paper tubes (d) a torn flat sheet
21. 21.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
22. 22.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
23. 23.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
24. 24.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) an eggshell (c) a round pillar (d) a roof frame
25. 25.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we keep it the same (b) we change it (c) we measure it
26. 26.True or false: a round pillar gets its strength from a tube shape. (a) True (b) False
27. 27.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a ruler (c) a mirror (d) two books
28. 28.🧺 Which of these is not needed for the paper bridge? (a) a balloon (b) sheets of paper (c) two books (d) coins
29. 29.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
30. 30.🏗️ Where does a roof frame get its strength from? (a) triangles (b) tubes (c) arches and domes
31. 31.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
32. 32.True or false: two books is needed for the paper bridge. (a) False (b) True
33. 33.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True
34. 34.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
35. 35.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
36. 36.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is very hot (c) it is made of steel (d) its curved arch shape
37. 37.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds are magnetic (c) folds make it stiffer (d) folds add glue
38. 38.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) a zigzag-folded sheet (c) rolled paper tubes (d) paper with folded edges
39. 39.True or false: a hollow bird bone gets its strength from a tube shape. (a) False (b) True
40. 40.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True

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