Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 134 · 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 wet flat sheet (b) one flat sheet (c) rolled paper tubes (d) a flat tissue
2. 2.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
3. 3.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the triangle (c) the star (d) the heart shape
4. 4.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
5. 5.🏗️ Which of these gets its strength from a tube shape? (a) a bamboo pole (b) a temple dome (c) an eggshell (d) a roof frame
6. 6.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
7. 7.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
8. 8.True or false: yeast is not needed for the paper bridge. (a) False (b) True
9. 9.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) an eggshell (c) an electric tower (d) a bamboo pole
10. 10.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) high and wobbly (c) on a stool edge (d) low and steady
11. 11.🔍 Which is the odd one out? (a) a U-shaped channel (b) a wet flat sheet (c) a zigzag-folded sheet (d) rolled paper tubes
12. 12.True or false: an eggshell gets its strength from arches or domes. (a) False (b) True
13. 13.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds are magnetic (c) folds add glue (d) folds make it wet
14. 14.⚖️ 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
15. 15.True or false: one flat sheet makes a strong bridge. (a) True (b) False
16. 16.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) lick your fingers (d) skip washing
17. 17.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
18. 18.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a U-shaped channel (c) rolled paper tubes (d) a wet flat sheet
19. 19.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) not at all (c) upward (d) less
20. 20.True or false: a magnet is needed for the paper bridge. (a) True (b) False
21. 21.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we change it (c) we keep it the same
22. 22.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) True (b) False
23. 23.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the gap between books (c) the shape of the paper
24. 24.🏗️ Where does a temple dome get its strength from? (a) tubes (b) triangles (c) arches and domes
25. 25.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) arches and domes (c) tubes
26. 26.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) True (b) False
27. 27.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a mirror (c) a ruler (d) a magnet
28. 28.🔍 Which is the odd one out? (a) paper with folded edges (b) a U-shaped channel (c) a zigzag-folded sheet (d) a torn flat sheet
29. 29.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
30. 30.🔍 Which is the odd one out? (a) one flat sheet (b) a flat tissue (c) a zigzag-folded sheet (d) a wet flat sheet
31. 31.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
32. 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) sheets of paper (c) coins (d) a ruler
33. 33.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) True (b) False
35. 35.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
36. 36.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) the kind of paper (c) the shape of the paper (d) where coins are placed
37. 37.🔍 Which is the odd one out? (a) paper with folded edges (b) a torn flat sheet (c) a flat tissue (d) a wet flat sheet
38. 38.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
39. 39.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) triangles (c) tubes
40. 40.True or false: a roof frame gets its strength from triangles. (a) False (b) True

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