Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 626 · 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 is not needed for the paper bridge? (a) two books (b) a mirror (c) coins (d) sheets of paper
2. 2.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
3. 3.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a battery cell (c) two books (d) sheets of paper
4. 4.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
5. 5.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
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.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a temple dome (c) an electric tower (d) a bamboo pole
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) sheets of paper (c) a ruler (d) two books
9. 9.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we keep it the same (c) we measure it
10. 10.True or false: a roof frame gets its strength from a tube shape. (a) True (b) False
11. 11.True or false: coins is needed for the paper bridge. (a) False (b) True
12. 12.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the shape of the paper (b) where coins are placed (c) coins it holds (d) the kind of paper
13. 13.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) upward (c) less (d) more
14. 14.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
15. 15.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
16. 16.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
17. 17.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) low and steady (c) on a stool edge (d) high and wobbly
18. 18.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) yeast (c) a ruler (d) two books
20. 20.🔍 Which is the odd one out? (a) a flat tissue (b) a zigzag-folded sheet (c) paper with folded edges (d) rolled paper tubes
21. 21.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds are magnetic (c) folds add glue (d) folds make it stiffer
22. 22.🔍 Which is the odd one out? (a) rolled paper tubes (b) a wet flat sheet (c) a U-shaped channel (d) paper with folded edges
23. 23.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) arches and domes (c) triangles
24. 24.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we change it (c) we keep it the same
25. 25.True or false: a bridge truss gets its strength from a tube shape. (a) False (b) True
26. 26.True or false: a flat tissue makes a strong bridge. (a) False (b) True
27. 27.🏗️ Where does a temple dome get its strength from? (a) tubes (b) arches and domes (c) triangles
28. 28.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) more (c) zero (d) the same number of
29. 29.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) wash your hands (d) skip washing
30. 30.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
31. 31.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) two books (c) sheets of paper (d) yeast
32. 32.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a roof frame (c) a hollow bird bone (d) a bamboo pole
33. 33.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) True (b) False
34. 34.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
35. 35.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) fewer coins (d) only water
36. 36.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
37. 37.True or false: a balloon is needed for the paper bridge. (a) False (b) True
38. 38.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a magnet (c) two books (d) yeast
39. 39.True or false: an eggshell gets its strength from arches or domes. (a) False (b) True
40. 40.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) a zigzag-folded sheet (d) a torn flat sheet

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