Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 65 · 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.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) zero (c) the same number of (d) fewer
2. 2.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
3. 3.🔍 Which is the odd one out? (a) one flat sheet (b) a U-shaped channel (c) a torn flat sheet (d) a wet flat sheet
4. 4.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) rolled paper tubes (c) a wet flat sheet (d) paper with folded edges
5. 5.🔮 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
6. 6.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) a hollow bird bone (c) an eggshell (d) an electric tower
7. 7.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) a zigzag-folded sheet (d) a wet flat sheet
8. 8.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True
9. 9.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
10. 10.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) coins (c) yeast (d) a balloon
11. 11.True or false: one flat sheet makes a weak bridge. (a) False (b) True
12. 12.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
13. 13.True or false: one flat sheet makes a strong bridge. (a) False (b) True
14. 14.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) False (b) True
15. 15.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
16. 16.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) arches and domes (c) tubes
17. 17.True or false: an old stone bridge gets its strength from arches or domes. (a) False (b) True
18. 18.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) tubes (c) arches and domes
19. 19.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a magnet (d) a ruler
21. 21.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) paper with folded edges (c) a U-shaped channel (d) a flat tissue
22. 22.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it gets stronger (c) it floats up (d) it sags and falls
23. 23.⚖️ 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
24. 24.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
25. 25.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a flat tissue (c) a wet flat sheet (d) rolled paper tubes
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) a mirror (d) a ruler
27. 27.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) where coins are placed (c) the shape of the paper (d) the kind of paper
28. 28.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
29. 29.⚖️ 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
30. 30.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a balloon (c) a ruler (d) a magnet
31. 31.🧺 Which of these is not needed for the paper bridge? (a) a battery cell (b) coins (c) sheets of paper (d) two books
32. 32.🏗️ Where does a roof frame get its strength from? (a) triangles (b) tubes (c) arches and domes
33. 33.True or false: coins is not needed for the paper bridge. (a) True (b) False
34. 34.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) rolled paper tubes (c) a flat tissue (d) a U-shaped channel
35. 35.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
36. 36.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) tubes (c) triangles
37. 37.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
38. 38.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
39. 39.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a hollow bird bone (c) an old stone bridge (d) a roof frame
40. 40.🔍 Which is the odd one out? (a) a flat tissue (b) a wet flat sheet (c) rolled paper tubes (d) one flat sheet

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