Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 395 · 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.True or false: a bridge truss gets its strength from arches or domes. (a) True (b) False
2. 2.🌉 Which of these makes a strong bridge? (a) rolled paper tubes (b) a torn flat sheet (c) a wet flat sheet (d) a flat tissue
3. 3.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) triangles (c) tubes
4. 4.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we measure it (c) we keep it the same
5. 5.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a hollow bird bone (c) an electric tower (d) an eggshell
6. 6.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) lick your fingers (c) wash your hands (d) rub your eyes
7. 7.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
8. 8.True or false: two books is not needed for the paper bridge. (a) True (b) False
9. 9.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) triangles (c) arches and domes
10. 10.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
11. 11.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
12. 12.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is made of steel (c) it is magnetic (d) it is very hot
13. 13.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we change it (c) we keep it the same
14. 14.🔍 Which is the odd one out? (a) rolled paper tubes (b) a wet flat sheet (c) a zigzag-folded sheet (d) a U-shaped channel
15. 15.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
16. 16.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) only water (c) the same coins (d) fewer coins
17. 17.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
18. 18.True or false: an electric tower gets its strength from arches or domes. (a) True (b) False
19. 19.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
20. 20.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) True (b) False
21. 21.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong 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.⚖️ 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
24. 24.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
25. 25.🔍 Which is the odd one out? (a) a U-shaped channel (b) a zigzag-folded sheet (c) a torn flat sheet (d) rolled paper tubes
26. 26.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
27. 27.🧺 Which of these is not needed for the paper bridge? (a) two books (b) turmeric powder (c) sheets of paper (d) coins
28. 28.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) True (b) False
29. 29.True or false: a battery cell is not needed for the paper bridge. (a) True (b) False
30. 30.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a roof frame (c) a hollow bird bone (d) an old stone bridge
31. 31.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a wet flat sheet (c) a zigzag-folded sheet (d) a U-shaped channel
32. 32.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the triangle (c) the star (d) the square
33. 33.True or false: coins is not needed for the paper bridge. (a) True (b) False
34. 34.True or false: paper with folded edges makes a weak bridge. (a) True (b) False
35. 35.⚖️ 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 kind of paper
36. 36.True or false: a mirror is needed for the paper bridge. (a) True (b) False
37. 37.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
38. 38.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) a wet flat sheet (d) a U-shaped channel
40. 40.⚖️ 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

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