Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 517 · 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.🌉 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
2. 2.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) sheets of paper (d) a balloon
3. 3.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we measure it (c) we keep it the same
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) yeast (c) sheets of paper (d) coins
5. 5.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) the kind of paper (c) the gap between books (d) the shape of the paper
6. 6.⚖️ 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
7. 7.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) skip washing (c) rub your eyes (d) wash your hands
8. 8.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
9. 9.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) True (b) False
10. 10.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) paper with folded edges (c) a zigzag-folded sheet (d) a flat tissue
11. 11.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) triangles (c) tubes
12. 12.True or false: a flat tissue makes a strong bridge. (a) False (b) True
13. 13.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) paper with folded edges (c) a wet flat sheet (d) one flat sheet
14. 14.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) False (b) True
15. 15.🏗️ Which of these gets its strength from arches or domes? (a) a temple dome (b) a hollow bird bone (c) a round pillar (d) a roof frame
16. 16.True or false: a bamboo pole gets its strength from a tube shape. (a) True (b) False
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) True (b) False
18. 18.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) the shape of the paper (c) the kind of paper (d) coins it holds
19. 19.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) more coins (c) the same coins (d) only water
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) turmeric powder (d) coins
21. 21.⚖️ 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
22. 22.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) low and steady (d) on a stool edge
23. 23.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) a battery cell (d) two books
24. 24.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) paper with folded edges (c) a flat tissue (d) a U-shaped channel
25. 25.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) coins (c) yeast (d) turmeric powder
26. 26.🔍 Which is the odd one out? (a) a U-shaped channel (b) a wet flat sheet (c) paper with folded edges (d) a zigzag-folded sheet
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) False (b) True
28. 28.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the kind of coins (c) the shape of the paper
29. 29.🔍 Which is the odd one out? (a) one flat sheet (b) a flat tissue (c) a U-shaped channel (d) a torn flat sheet
30. 30.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
31. 31.🌉 Which of these makes a strong bridge? (a) rolled paper tubes (b) one flat sheet (c) a wet flat sheet (d) a torn flat sheet
32. 32.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
33. 33.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
34. 34.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
35. 35.🏗️ Where does an electric tower get its strength from? (a) tubes (b) arches and domes (c) triangles
36. 36.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
37. 37.⚖️ 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
38. 38.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) tubes (c) triangles
39. 39.True or false: a battery cell is needed for the paper bridge. (a) True (b) False
40. 40.True or false: two books is not needed for the paper bridge. (a) False (b) True

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