Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 77 · 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 makes a strong bridge? (a) a wet flat sheet (b) a U-shaped channel (c) one flat sheet (d) a flat tissue
2. 2.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
3. 3.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a zigzag-folded sheet (c) a flat tissue (d) a torn flat sheet
4. 4.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) a U-shaped channel (c) paper with folded edges (d) rolled paper tubes
5. 5.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
6. 6.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we change it (c) we measure it
7. 7.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
8. 8.🧺 Which of these is not needed for the paper bridge? (a) a battery cell (b) a ruler (c) coins (d) sheets of paper
9. 9.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a balloon (c) a battery cell (d) a ruler
10. 10.🔍 Which is the odd one out? (a) one flat sheet (b) paper with folded edges (c) rolled paper tubes (d) a zigzag-folded sheet
11. 11.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) False (b) True
12. 12.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a bamboo pole (c) a roof frame (d) a hollow bird bone
13. 13.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we measure it (c) we keep it the same
14. 14.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the heart shape (c) the star (d) the square
15. 15.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) low and steady (d) high and wobbly
16. 16.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) two books (c) coins (d) a ruler
17. 17.True or false: a ruler is not needed for the paper bridge. (a) True (b) False
18. 18.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a bamboo pole (c) a temple dome (d) a bridge truss
19. 19.⚖️ 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
20. 20.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
21. 21.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True
22. 22.True or false: two books is not needed for the paper bridge. (a) False (b) True
23. 23.True or false: a mirror is not needed for the paper bridge. (a) True (b) False
24. 24.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds are magnetic (c) folds make it wet (d) folds add glue
25. 25.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a balloon (c) a ruler (d) two books
27. 27.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
28. 28.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) the same number of (c) fewer (d) more
29. 29.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) upward (c) more (d) less
30. 30.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a balloon (c) coins (d) turmeric powder
31. 31.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
32. 32.🔍 Which is the odd one out? (a) a wet flat sheet (b) one flat sheet (c) paper with folded edges (d) a flat tissue
33. 33.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) turmeric powder (c) sheets of paper (d) a battery cell
34. 34.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) paper with folded edges (c) one flat sheet (d) rolled paper tubes
35. 35.🔍 Which is the odd one out? (a) one flat sheet (b) a torn flat sheet (c) rolled paper tubes (d) a flat tissue
36. 36.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) the same coins (c) more coins (d) only water
37. 37.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
38. 38.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) the kind of paper (c) where coins are placed (d) the shape of the paper
39. 39.🔍 Which is the odd one out? (a) a wet flat sheet (b) a torn flat sheet (c) a flat tissue (d) a zigzag-folded sheet
40. 40.True or false: a round pillar gets its strength from arches or domes. (a) False (b) True

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