Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 151 · 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.True or false: a bamboo pole gets its strength from arches or domes. (a) False (b) True
2. 2.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
3. 3.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) a hollow bird bone (c) a temple dome (d) an electric tower
4. 4.True or false: a balloon is needed for the paper bridge. (a) True (b) False
5. 5.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) False (b) True
6. 6.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds make it wet (c) folds are magnetic (d) folds add glue
7. 7.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) high and wobbly (d) low and steady
8. 8.🔍 Which is the odd one out? (a) a flat tissue (b) a wet flat sheet (c) rolled paper tubes (d) one flat sheet
9. 9.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a balloon (d) a ruler
11. 11.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) two books (c) a ruler (d) sheets of paper
12. 12.⚖️ 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
13. 13.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) triangles (c) arches and domes
14. 14.🧺 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
15. 15.⚖️ 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
16. 16.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
17. 17.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) rolled paper tubes (c) a zigzag-folded sheet (d) a U-shaped channel
18. 18.True or false: an eggshell gets its strength from a tube shape. (a) True (b) False
19. 19.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) False (b) True
20. 20.🏗️ Where does an electric tower get its strength from? (a) triangles (b) arches and domes (c) tubes
21. 21.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) a wet flat sheet (d) a zigzag-folded sheet
22. 22.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
23. 23.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) more coins (c) fewer coins (d) the same coins
24. 24.🔍 Which is the odd one out? (a) rolled paper tubes (b) paper with folded edges (c) a zigzag-folded sheet (d) a torn flat sheet
25. 25.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) the kind of paper (c) the gap between books (d) coins it holds
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a mirror (c) two books (d) a ruler
27. 27.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) the same number of (c) more (d) zero
28. 28.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
29. 29.True or false: one flat sheet makes a weak bridge. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) a U-shaped channel (b) a flat tissue (c) one flat sheet (d) a wet flat sheet
31. 31.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we keep it the same (c) we measure it
32. 32.🔍 Which is the odd one out? (a) rolled paper tubes (b) a U-shaped channel (c) a zigzag-folded sheet (d) one flat sheet
33. 33.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
34. 34.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) arches and domes (c) tubes
35. 35.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
36. 36.True or false: a wet flat sheet makes a weak bridge. (a) True (b) False
37. 37.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
38. 38.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a bamboo pole (c) a round pillar (d) a bridge truss
39. 39.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) skip washing (d) lick your fingers
40. 40.True or false: paper with folded edges makes a strong bridge. (a) True (b) False

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