Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 203 · 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.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) lick your fingers (d) wash your hands
2. 2.🔍 Which is the odd one out? (a) a U-shaped channel (b) paper with folded edges (c) rolled paper tubes (d) a flat tissue
3. 3.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) more (c) fewer (d) zero
4. 4.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) rolled paper tubes (c) a torn flat sheet (d) a zigzag-folded sheet
5. 5.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) a roof frame (c) an eggshell (d) a hollow bird bone
6. 6.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
7. 7.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) turmeric powder (d) sheets of paper
9. 9.🏗️ Which of these gets its strength from a tube shape? (a) a hollow bird bone (b) an eggshell (c) a roof frame (d) an old stone bridge
10. 10.🌉 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
11. 11.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) sheets of paper (c) a balloon (d) a mirror
12. 12.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a mirror (c) two books (d) turmeric powder
13. 13.🏗️ Which of these gets its strength from a tube shape? (a) a bamboo pole (b) a roof frame (c) a temple dome (d) an eggshell
14. 14.True or false: a magnet is needed for the paper bridge. (a) True (b) False
15. 15.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) on top of a pet (d) low and steady
16. 16.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
17. 17.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
18. 18.⚖️ 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
19. 19.True or false: a round pillar gets its strength from triangles. (a) True (b) False
20. 20.True or false: two books is not needed for the paper bridge. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a wet flat sheet (c) a flat tissue (d) one flat sheet
22. 22.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) one flat sheet (c) a flat tissue (d) a U-shaped channel
23. 23.⚖️ 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 keep it the same (c) we change it
24. 24.🔍 Which is the odd one out? (a) a U-shaped channel (b) paper with folded edges (c) one flat sheet (d) rolled paper tubes
25. 25.True or false: a bridge truss gets its strength from a tube shape. (a) True (b) False
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a balloon (c) a ruler (d) two books
27. 27.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) less (c) not at all (d) more
28. 28.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) arches and domes (c) triangles
29. 29.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
30. 30.True or false: a ruler is not needed for the paper bridge. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) a flat tissue (b) a U-shaped channel (c) a torn flat sheet (d) one flat sheet
32. 32.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) tubes (c) arches and domes
33. 33.🔍 Which is the odd one out? (a) a wet flat sheet (b) a torn flat sheet (c) paper with folded edges (d) a flat tissue
34. 34.True or false: a bridge truss gets its strength from arches or domes. (a) True (b) False
35. 35.🏗️ Where does a temple dome get its strength from? (a) triangles (b) arches and domes (c) tubes
36. 36.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
37. 37.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
38. 38.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
39. 39.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we keep it the same (b) we measure it (c) we change it
40. 40.🏗️ Where does a round pillar get its strength from? (a) triangles (b) tubes (c) arches and domes

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