Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 229 · 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 of these gets its strength from triangles? (a) a bridge truss (b) a temple dome (c) an old stone bridge (d) a bamboo pole
2. 2.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we keep it the same (c) we measure it
3. 3.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) a hollow bird bone (c) a bamboo pole (d) an eggshell
4. 4.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a battery cell (c) turmeric powder (d) coins
5. 5.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) True (b) False
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a magnet (c) sheets of paper (d) coins
7. 7.🧺 Which of these is not needed for the paper bridge? (a) a mirror (b) a ruler (c) two books (d) coins
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) the gap between books (c) coins it holds
9. 9.True or false: a roof frame gets its strength from arches or domes. (a) True (b) False
10. 10.True or false: an old stone bridge gets its strength from a tube shape. (a) False (b) True
11. 11.🔍 Which is the odd one out? (a) a torn flat sheet (b) rolled paper tubes (c) a flat tissue (d) one flat sheet
12. 12.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) a wet flat sheet (d) paper with folded edges
13. 13.True or false: two books is not needed for the paper bridge. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) a flat tissue (b) a zigzag-folded sheet (c) a wet flat sheet (d) a torn flat sheet
15. 15.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we change it (c) we keep it the same
16. 16.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) low and steady (c) on top of a pet (d) on a stool edge
17. 17.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) arches and domes (c) tubes
18. 18.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) less (c) more (d) upward
19. 19.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
20. 20.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
21. 21.🔍 Which is the odd one out? (a) paper with folded edges (b) a wet flat sheet (c) a flat tissue (d) a torn flat sheet
22. 22.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a zigzag-folded sheet (c) a wet flat sheet (d) a U-shaped channel
23. 23.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds add glue (c) folds make it stiffer (d) folds make it wet
24. 24.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) False (b) True
25. 25.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) sheets of paper (c) coins (d) two books
26. 26.True or false: a temple dome gets its strength from triangles. (a) True (b) False
27. 27.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) triangles (c) tubes
28. 28.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the heart shape (c) the square (d) the triangle
29. 29.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) paper with folded edges (c) a flat tissue (d) a U-shaped channel
30. 30.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) more coins (c) fewer coins (d) the same coins
31. 31.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
32. 32.True or false: a flat tissue makes a weak bridge. (a) False (b) True
33. 33.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) two books (c) sheets of paper (d) coins
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (a) False (b) True
35. 35.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) wash your hands (c) lick your fingers (d) skip washing
36. 36.🧺 Which of these is not needed for the paper bridge? (a) turmeric powder (b) sheets of paper (c) a ruler (d) coins
37. 37.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
38. 38.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
39. 39.True or false: yeast is not needed for the paper bridge. (a) True (b) False
40. 40.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) arches and domes (c) triangles

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