Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 492 · 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.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
2. 2.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) rolled paper tubes (c) one flat sheet (d) a zigzag-folded sheet
3. 3.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
4. 4.🧺 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
5. 5.⚖️ 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
6. 6.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a mirror (c) coins (d) sheets of paper
7. 7.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a balloon (c) a battery cell (d) sheets of paper
8. 8.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a zigzag-folded sheet (c) a torn flat sheet (d) a flat tissue
9. 9.True or false: one flat sheet makes a strong bridge. (a) True (b) False
10. 10.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a U-shaped channel (c) a flat tissue (d) one flat sheet
11. 11.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
12. 12.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we keep it the same (b) we change it (c) we measure it
13. 13.True or false: a flat tissue makes a strong bridge. (a) True (b) False
14. 14.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
15. 15.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a ruler (c) a mirror (d) yeast
16. 16.True or false: a round pillar gets its strength from a tube shape. (a) True (b) False
17. 17.True or false: a bridge truss gets its strength from arches or domes. (a) True (b) False
18. 18.True or false: a ruler is needed for the paper bridge. (a) True (b) False
19. 19.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) tubes (c) triangles
20. 20.True or false: a balloon is needed for the paper bridge. (a) False (b) True
21. 21.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
22. 22.True or false: an electric tower gets its strength from triangles. (a) False (b) True
23. 23.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) more (d) the same number of
24. 24.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we keep it the same (c) we change it
25. 25.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a ruler (d) turmeric powder
26. 26.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a bamboo pole (c) a roof frame (d) an old stone bridge
27. 27.🔮 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
28. 28.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) skip washing (c) rub your eyes (d) lick your fingers
29. 29.⚖️ 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 gap between books
30. 30.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) low and steady (c) on a stool edge (d) on top of a pet
31. 31.True or false: an electric tower gets its strength from arches or domes. (a) False (b) True
32. 32.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
33. 33.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) coins (d) a battery cell
34. 34.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) coins it holds (c) where coins are placed (d) the shape of the paper
35. 35.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
36. 36.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a temple dome (c) a hollow bird bone (d) an electric tower
37. 37.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the triangle (c) the heart shape (d) the square
38. 38.🌉 Which of these makes a strong bridge? (a) paper with folded edges (b) a torn flat sheet (c) a wet flat sheet (d) one flat sheet
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) a ruler (d) yeast
40. 40.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) triangles (c) tubes

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