Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 766 · 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) a U-shaped channel
2. 2.🏗️ Where does a round pillar get its strength from? (a) triangles (b) arches and domes (c) tubes
3. 3.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) on top of a pet (d) low and steady
4. 4.🔺 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 square (d) the heart shape
5. 5.True or false: an eggshell gets its strength from a tube shape. (a) False (b) True
6. 6.🧺 Which of these is not needed for the paper bridge? (a) a magnet (b) sheets of paper (c) a ruler (d) two books
7. 7.🏗️ Where does a roof frame get its strength from? (a) tubes (b) arches and domes (c) triangles
8. 8.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
9. 9.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) sheets of paper (d) a balloon
10. 10.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
11. 11.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
12. 12.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) triangles (c) arches and domes
13. 13.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a flat tissue (c) a wet flat sheet (d) a torn flat sheet
14. 14.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) more (c) not at all (d) less
15. 15.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) only water (c) more coins (d) the same coins
16. 16.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a zigzag-folded sheet (c) a U-shaped channel (d) a torn flat sheet
17. 17.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a U-shaped channel (d) a torn flat sheet
18. 18.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
19. 19.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we keep it the same (c) we measure it
20. 20.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
21. 21.True or false: a flat tissue makes a strong bridge. (a) False (b) True
22. 22.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) a U-shaped channel (b) rolled paper tubes (c) one flat sheet (d) paper with folded edges
24. 24.True or false: one flat sheet makes a weak bridge. (a) False (b) True
25. 25.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
26. 26.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
27. 27.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) yeast (c) a mirror (d) coins
28. 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) two books (c) a ruler (d) coins
29. 29.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
30. 30.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) a balloon (d) a ruler
31. 31.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
32. 32.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we keep it the same (b) we change it (c) we measure it
33. 33.True or false: a round pillar gets its strength from a tube shape. (a) True (b) False
34. 34.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) sheets of paper (c) yeast (d) a balloon
35. 35.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) sheets of paper (d) a mirror
36. 36.True or false: a round pillar gets its strength from triangles. (a) True (b) False
37. 37.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
38. 38.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we measure it (c) we change it
39. 39.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) an old stone bridge (c) a bamboo pole (d) a temple dome
40. 40.🏗️ Where does a temple dome get its strength from? (a) tubes (b) triangles (c) arches and domes

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