Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 150 · 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.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) low and steady (c) on a stool edge (d) high and wobbly
2. 2.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
3. 3.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a round pillar (c) a roof frame (d) a bamboo pole
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a battery cell (d) coins
5. 5.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) only water (c) fewer coins (d) more coins
6. 6.⚖️ 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
7. 7.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) tubes (c) triangles
8. 8.⚖️ 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
9. 9.True or false: coins is needed for the paper bridge. (a) True (b) False
10. 10.True or false: a round pillar gets its strength from a tube shape. (a) False (b) True
11. 11.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
12. 12.🏗️ Where does a roof frame get its strength from? (a) tubes (b) arches and domes (c) triangles
13. 13.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
14. 14.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) a hollow bird bone (c) an old stone bridge (d) an eggshell
15. 15.🔍 Which is the odd one out? (a) one flat sheet (b) a wet flat sheet (c) a flat tissue (d) paper with folded edges
16. 16.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) True (b) False
17. 17.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
18. 18.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
19. 19.True or false: two books is needed for the paper bridge. (a) False (b) True
20. 20.True or false: a flat tissue makes a strong bridge. (a) False (b) True
21. 21.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) True (b) False
22. 22.🧺 Which of these is needed for the paper bridge? (a) yeast (b) sheets of paper (c) turmeric powder (d) a balloon
23. 23.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) True (b) False
24. 24.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) rolled paper tubes (d) a flat tissue
25. 25.⚖️ 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
26. 26.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we keep it the same (c) we change it
27. 27.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a hollow bird bone (c) a round pillar (d) a temple dome
28. 28.🔍 Which is the odd one out? (a) rolled paper tubes (b) one flat sheet (c) a zigzag-folded sheet (d) a U-shaped channel
29. 29.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) coins it holds (c) the gap between books (d) the shape of the paper
30. 30.🧺 Which of these is not needed for the paper bridge? (a) two books (b) turmeric powder (c) a ruler (d) sheets of paper
31. 31.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) a ruler (d) a magnet
32. 32.True or false: a zigzag-folded sheet makes a strong bridge. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) a flat tissue (b) a torn flat sheet (c) a zigzag-folded sheet (d) one flat sheet
34. 34.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
35. 35.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we measure it (c) we keep it the same
36. 36.🏗️ Which of these gets its strength from arches or domes? (a) an old stone bridge (b) an electric tower (c) a bridge truss (d) a hollow bird bone
37. 37.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
38. 38.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) rub your eyes (c) wash your hands (d) lick your fingers
39. 39.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
40. 40.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a U-shaped channel (c) a flat tissue (d) rolled paper tubes

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