Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 321 · 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? What do we do with “the shape of the paper”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a balloon (d) a ruler
3. 3.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) two books (c) a mirror (d) a magnet
4. 4.🏗️ Where does an eggshell get its strength from? (a) triangles (b) tubes (c) arches and domes
5. 5.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on a stool edge (c) on top of a pet (d) high and wobbly
6. 6.True or false: an eggshell gets its strength from arches or domes. (a) True (b) False
7. 7.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
8. 8.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
9. 9.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we keep it the same (c) we measure it
10. 10.⚖️ 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 measure it (c) we change it
11. 11.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
12. 12.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the heart shape (c) the triangle (d) the star
13. 13.True or false: a magnet is needed for the paper bridge. (a) True (b) False
14. 14.True or false: a U-shaped channel makes a strong bridge. (a) True (b) False
15. 15.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
16. 16.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a temple dome (c) a roof frame (d) a round pillar
17. 17.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
18. 18.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) rolled paper tubes (c) a U-shaped channel (d) a flat tissue
19. 19.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
20. 20.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
21. 21.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) tubes (c) triangles
22. 22.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) yeast (c) turmeric powder (d) a ruler
23. 23.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a U-shaped channel (c) a wet flat sheet (d) one flat sheet
24. 24.🏗️ Which of these gets its strength from arches or domes? (a) an eggshell (b) a hollow bird bone (c) a roof frame (d) a round pillar
25. 25.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) a battery cell (d) two books
26. 26.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
27. 27.True or false: a balloon is needed for the paper bridge. (a) False (b) True
28. 28.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
29. 29.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) the same coins (c) only water (d) more coins
30. 30.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) coins (c) a balloon (d) a magnet
31. 31.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the kind of coins (c) coins it holds
32. 32.🌉 Which of these makes a weak bridge? (a) a torn flat sheet (b) a zigzag-folded sheet (c) paper with folded edges (d) rolled paper tubes
33. 33.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) True (b) False
34. 34.True or false: a wet flat sheet makes a weak bridge. (a) True (b) False
35. 35.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
36. 36.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) triangles (c) tubes
37. 37.True or false: a round pillar gets its strength from a tube shape. (a) True (b) False
38. 38.🏗️ Where does a round pillar get its strength from? (a) triangles (b) tubes (c) arches and domes
39. 39.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is made of steel (c) it is magnetic (d) its curved arch shape
40. 40.True or false: a temple dome gets its strength from a tube shape. (a) False (b) True

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