Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 765 · 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 weak bridge? (a) one flat sheet (b) a zigzag-folded sheet (c) rolled paper tubes (d) paper with folded edges
2. 2.🏗️ Which of these gets its strength from a tube shape? (a) a round pillar (b) an old stone bridge (c) a roof frame (d) a bridge truss
3. 3.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) only water (d) fewer coins
4. 4.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the kind of paper (c) the shape of the paper
5. 5.🌉 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
6. 6.True or false: a bamboo pole gets its strength from a tube shape. (a) True (b) False
7. 7.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
8. 8.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) a round pillar (c) a bridge truss (d) a temple dome
9. 9.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) arches and domes (c) triangles
10. 10.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) where coins are placed (c) the kind of paper (d) the shape of the paper
11. 11.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) two books (c) a mirror (d) sheets of paper
12. 12.⚖️ 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
13. 13.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) high and wobbly (c) on a stool edge (d) low and steady
14. 14.True or false: one flat sheet makes a weak bridge. (a) True (b) False
15. 15.True or false: a bridge truss gets its strength from arches or domes. (a) True (b) False
16. 16.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we change it (c) we keep it the same
17. 17.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
18. 18.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the gap between books (b) the shape of the paper (c) coins it holds
19. 19.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) an old stone bridge (c) an electric tower (d) a hollow bird bone
20. 20.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
21. 21.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) upward (c) less (d) not at all
22. 22.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
23. 23.🏗️ Which of these gets its strength from arches or domes? (a) an old stone bridge (b) a roof frame (c) a bamboo pole (d) a round pillar
24. 24.True or false: two books is not needed for the paper bridge. (a) True (b) False
25. 25.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
26. 26.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a balloon (c) a magnet (d) coins
27. 27.🔍 Which is the odd one out? (a) one flat sheet (b) rolled paper tubes (c) a wet flat sheet (d) a flat tissue
28. 28.True or false: an eggshell gets its strength from triangles. (a) True (b) False
29. 29.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) turmeric powder (c) sheets of paper (d) coins
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) coins (d) a mirror
31. 31.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
32. 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a balloon (c) coins (d) a ruler
33. 33.True or false: a ruler is needed for the paper bridge. (a) False (b) True
34. 34.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) triangles (c) tubes
35. 35.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) skip washing (d) lick your fingers
36. 36.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) True (b) False
37. 37.⚖️ 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
38. 38.🧺 Which of these is not needed for the paper bridge? (a) turmeric powder (b) a ruler (c) two books (d) sheets of paper
39. 39.🏗️ Where does a temple dome get its strength from? (a) tubes (b) triangles (c) arches and domes
40. 40.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True

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