Paper Bridge STEM Challenge Worksheet

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

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