Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 737 · 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.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
2. 2.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) the kind of coins
3. 3.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
4. 4.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it wet (c) folds add glue (d) folds make it stiffer
5. 5.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) triangles (c) arches and domes
6. 6.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) an electric tower (c) a roof frame (d) a hollow bird bone
7. 7.🏗️ Where does an old stone bridge get its strength from? (a) arches and domes (b) triangles (c) tubes
8. 8.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) an eggshell (c) a hollow bird bone (d) a roof frame
9. 9.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) coins (d) a balloon
11. 11.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
12. 12.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
13. 13.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
14. 14.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) yeast (c) sheets of paper (d) a mirror
15. 15.True or false: a mirror is not needed for the paper bridge. (a) True (b) False
16. 16.⚖️ 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 change it (c) we keep it the same
17. 17.🔮 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
18. 18.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) True (b) False
19. 19.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we keep it the same (c) we measure it
20. 20.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the star (c) the triangle (d) the square
21. 21.True or false: a flat tissue makes a weak bridge. (a) True (b) False
22. 22.🧺 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
23. 23.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
24. 24.🏗️ Which of these gets its strength from arches or domes? (a) an eggshell (b) a bridge truss (c) a roof frame (d) a bamboo pole
25. 25.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the gap between books (c) the shape of the paper
26. 26.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) paper with folded edges (c) a U-shaped channel (d) a flat tissue
27. 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) sheets of paper (c) two books (d) coins
28. 28.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
29. 29.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
30. 30.🔍 Which is the odd one out? (a) a U-shaped channel (b) paper with folded edges (c) a flat tissue (d) rolled paper tubes
31. 31.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) a bridge truss (c) a bamboo pole (d) an electric tower
32. 32.True or false: a battery cell is needed for the paper bridge. (a) False (b) True
33. 33.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it sags and falls (c) it gets stronger (d) it floats up
34. 34.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
35. 35.🔍 Which is the odd one out? (a) a wet flat sheet (b) a torn flat sheet (c) paper with folded edges (d) one flat sheet
36. 36.🔍 Which is the odd one out? (a) a U-shaped channel (b) a zigzag-folded sheet (c) rolled paper tubes (d) a wet flat sheet
37. 37.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) triangles (c) arches and domes
38. 38.⚖️ 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) the kind of paper (c) the gap between books (d) the kind of coins
39. 39.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
40. 40.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed

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