Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 414 · 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.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
2. 2.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) skip washing (d) wash your hands
3. 3.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) one flat sheet (c) paper with folded edges (d) a wet flat sheet
4. 4.🌉 Which of these makes a strong bridge? (a) rolled paper tubes (b) one flat sheet (c) a wet flat sheet (d) a torn flat sheet
5. 5.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) low and steady (d) on top of a pet
6. 6.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we keep it the same (b) we change it (c) we measure it
7. 7.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (a) False (b) True
8. 8.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a torn flat sheet (c) one flat sheet (d) a zigzag-folded sheet
9. 9.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a U-shaped channel (c) one flat sheet (d) a wet flat sheet
10. 10.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
11. 11.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
12. 12.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) triangles (c) tubes
13. 13.⚖️ 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
14. 14.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
15. 15.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
16. 16.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) paper with folded edges (c) a zigzag-folded sheet (d) a flat tissue
17. 17.True or false: coins is not needed for the paper bridge. (a) True (b) False
18. 18.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) arches and domes (c) tubes
19. 19.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) yeast (c) sheets of paper (d) turmeric powder
20. 20.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) one flat sheet (c) paper with folded edges (d) a zigzag-folded sheet
21. 21.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
22. 22.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
23. 23.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) a ruler (d) a mirror
24. 24.True or false: a temple dome gets its strength from arches or domes. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) a flat tissue (b) rolled paper tubes (c) a U-shaped channel (d) a zigzag-folded sheet
26. 26.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
27. 27.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
28. 28.True or false: a mirror is needed for the paper bridge. (a) False (b) True
29. 29.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) coins (d) yeast
30. 30.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) a bridge truss (c) a bamboo pole (d) an old stone bridge
31. 31.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) upward (c) not at all (d) more
32. 32.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the star (c) the heart shape (d) the square
33. 33.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a ruler (c) turmeric powder (d) a magnet
34. 34.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
35. 35.True or false: a battery cell is not needed for the paper bridge. (a) True (b) False
36. 36.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) fewer coins (c) more coins (d) the same coins
37. 37.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a magnet (d) sheets of paper
38. 38.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True
39. 39.⚖️ 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
40. 40.🔍 Which is the odd one out? (a) a U-shaped channel (b) a zigzag-folded sheet (c) a wet flat sheet (d) rolled paper tubes

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