Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 269 · 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 a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
2. 2.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
3. 3.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) the same number of (c) zero (d) fewer
4. 4.🔍 Which is the odd one out? (a) paper with folded edges (b) rolled paper tubes (c) a torn flat sheet (d) a zigzag-folded sheet
5. 5.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) one flat sheet (c) a wet flat sheet (d) a flat tissue
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) a ruler (c) sheets of paper (d) two books
7. 7.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
8. 8.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) paper with folded edges (c) a wet flat sheet (d) a flat tissue
9. 9.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a zigzag-folded sheet (d) a torn flat sheet
10. 10.⚖️ 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 change it (c) we measure it
11. 11.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) yeast (c) coins (d) sheets of paper
12. 12.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) a torn flat sheet (b) a flat tissue (c) paper with folded edges (d) one flat sheet
14. 14.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
15. 15.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on top of a pet (c) on a stool edge (d) high and wobbly
16. 16.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) an eggshell (c) a bridge truss (d) a bamboo pole
17. 17.True or false: a flat tissue makes a strong bridge. (a) False (b) True
18. 18.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
19. 19.⚖️ 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) where coins are placed
20. 20.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) only water (c) more coins (d) fewer coins
21. 21.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it stiffer (c) folds add glue (d) folds make it wet
22. 22.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a round pillar (c) an eggshell (d) a roof frame
23. 23.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
24. 24.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a flat tissue (d) a U-shaped channel
25. 25.🔍 Which is the odd one out? (a) rolled paper tubes (b) one flat sheet (c) paper with folded edges (d) a zigzag-folded sheet
26. 26.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) the shape of the paper (c) where coins are placed (d) coins it holds
27. 27.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) more (c) upward (d) less
28. 28.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a bridge truss (c) a round pillar (d) an old stone bridge
29. 29.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
30. 30.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a magnet (c) a balloon (d) a ruler
31. 31.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
32. 32.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we measure it (c) we keep it the same
33. 33.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) wash your hands (d) lick your fingers
34. 34.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
35. 35.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
36. 36.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) a zigzag-folded sheet (c) paper with folded edges (d) rolled paper tubes
37. 37.🔍 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
38. 38.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) two books (c) a mirror (d) coins
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
40. 40.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) the kind of coins

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