Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 412 · 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.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
3. 3.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) sheets of paper (c) coins (d) two books
4. 4.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) low and steady (c) high and wobbly (d) on a stool edge
5. 5.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
6. 6.🔍 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
7. 7.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
8. 8.⚖️ 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
9. 9.True or false: paper with folded edges makes a weak bridge. (a) True (b) False
10. 10.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) fewer coins (d) more coins
11. 11.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds add glue (c) folds are magnetic (d) folds make it stiffer
12. 12.🔍 Which is the odd one out? (a) a flat tissue (b) rolled paper tubes (c) a U-shaped channel (d) paper with folded edges
13. 13.🔍 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
14. 14.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
15. 15.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we measure it (b) we change it (c) we keep it the same
16. 16.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) wash your hands (c) lick your fingers (d) rub your eyes
17. 17.🔍 Which is the odd one out? (a) paper with folded edges (b) a U-shaped channel (c) one flat sheet (d) rolled paper tubes
18. 18.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
19. 19.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) the same number of (c) zero (d) fewer
20. 20.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a wet flat sheet (c) one flat sheet (d) a zigzag-folded sheet
21. 21.🧺 Which of these is needed for the paper bridge? (a) coins (b) turmeric powder (c) a magnet (d) a mirror
22. 22.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) triangles (c) arches and domes
23. 23.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) turmeric powder (c) two books (d) coins
24. 24.🏗️ Where does a round pillar get its strength from? (a) tubes (b) arches and domes (c) triangles
25. 25.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
26. 26.🔍 Which is the odd one out? (a) a flat tissue (b) a torn flat sheet (c) rolled paper tubes (d) a wet flat sheet
27. 27.True or false: a bridge truss gets its strength from arches or domes. (a) False (b) True
28. 28.True or false: a flat tissue makes a strong bridge. (a) True (b) False
29. 29.🏗️ Where does a roof frame get its strength from? (a) triangles (b) tubes (c) arches and domes
30. 30.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we change it (c) we measure it
31. 31.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) a U-shaped channel (b) a zigzag-folded sheet (c) a wet flat sheet (d) rolled paper tubes
33. 33.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
34. 34.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a mirror (c) sheets of paper (d) a balloon
35. 35.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a magnet (d) a ruler
36. 36.True or false: a bamboo pole gets its strength from a tube shape. (a) True (b) False
37. 37.True or false: a roof frame gets its strength from arches or domes. (a) True (b) False
38. 38.True or false: a roof frame gets its strength from triangles. (a) True (b) False
39. 39.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
40. 40.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a round pillar (c) a hollow bird bone (d) an electric tower

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