Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 597 · 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 is the odd one out? (a) rolled paper tubes (b) a U-shaped channel (c) one flat sheet (d) a zigzag-folded sheet
2. 2.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is magnetic (c) it is very hot (d) it is made of steel
3. 3.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
4. 4.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) fewer coins (d) only water
5. 5.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) False (b) True
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) yeast (d) sheets of paper
7. 7.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True
8. 8.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
9. 9.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
10. 10.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a magnet (c) two books (d) turmeric powder
11. 11.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) a round pillar (c) a hollow bird bone (d) a temple dome
12. 12.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) arches and domes (c) triangles
13. 13.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a balloon (c) two books (d) coins
14. 14.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we measure it (c) we keep it the same
15. 15.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
16. 16.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) the shape of the paper (c) the kind of paper (d) where coins are placed
17. 17.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) the same number of (c) zero (d) more
18. 18.🔍 Which is the odd one out? (a) a torn flat sheet (b) rolled paper tubes (c) a U-shaped channel (d) paper with folded edges
19. 19.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
20. 20.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) an old stone bridge (c) a bridge truss (d) a roof frame
21. 21.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) tubes (c) arches and domes
22. 22.⚖️ 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
23. 23.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) not at all (c) more (d) less
24. 24.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) paper with folded edges (c) rolled paper tubes (d) a wet flat sheet
25. 25.True or false: a battery cell is needed for the paper bridge. (a) False (b) True
26. 26.⚖️ 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
27. 27.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
28. 28.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
29. 29.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we measure it (c) we change it
30. 30.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
31. 31.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
32. 32.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a bamboo pole (c) a roof frame (d) a temple dome
33. 33.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
34. 34.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it wet (c) folds are magnetic (d) folds make it stiffer
35. 35.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
36. 36.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
37. 37.🏗️ Where does a round pillar get its strength from? (a) triangles (b) arches and domes (c) tubes
38. 38.🔍 Which is the odd one out? (a) paper with folded edges (b) a zigzag-folded sheet (c) a U-shaped channel (d) a wet flat sheet
39. 39.True or false: a round pillar gets its strength from a tube shape. (a) True (b) False
40. 40.🧺 Which of these is needed for the paper bridge? (a) yeast (b) turmeric powder (c) sheets of paper (d) a magnet

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