Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 41 · 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 kind of paper”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
3. 3.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True
4. 4.🏗️ Where does an eggshell get its strength from? (a) tubes (b) triangles (c) arches and domes
5. 5.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
6. 6.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) the gap between books (c) coins it holds (d) the shape of the paper
7. 7.⚖️ 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) where coins are placed
8. 8.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) turmeric powder (c) a ruler (d) a battery cell
9. 9.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a mirror (c) two books (d) coins
10. 10.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) a round pillar (c) a roof frame (d) an eggshell
11. 11.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True
12. 12.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is magnetic (c) it is made of steel (d) its curved arch shape
13. 13.True or false: an electric tower gets its strength from triangles. (a) True (b) False
14. 14.⚖️ 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
15. 15.🔍 Which is the odd one out? (a) a wet flat sheet (b) one flat sheet (c) a torn flat sheet (d) rolled paper tubes
16. 16.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) turmeric powder (c) two books (d) a battery cell
17. 17.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) two books (d) a battery cell
18. 18.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
19. 19.True or false: a mirror is needed for the paper bridge. (a) False (b) True
20. 20.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
21. 21.True or false: an old stone bridge gets its strength from a tube shape. (a) True (b) False
22. 22.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) rolled paper tubes (c) a flat tissue (d) a torn flat sheet
23. 23.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a bridge truss (c) a temple dome (d) a roof frame
24. 24.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) low and steady (c) on a stool edge (d) on top of a pet
25. 25.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) paper with folded edges (d) a wet flat sheet
26. 26.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a torn flat sheet (c) paper with folded edges (d) a zigzag-folded sheet
27. 27.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) lick your fingers (d) skip washing
28. 28.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the square (c) the triangle (d) the star
29. 29.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
30. 30.True or false: one flat sheet makes a strong bridge. (a) False (b) True
31. 31.True or false: a round pillar gets its strength from arches or domes. (a) True (b) False
32. 32.True or false: an electric tower gets its strength from a tube shape. (a) False (b) True
33. 33.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a bridge truss (c) a hollow bird bone (d) a round pillar
34. 34.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) paper with folded edges (c) a flat tissue (d) rolled paper tubes
35. 35.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) yeast (d) a ruler
36. 36.True or false: a flat tissue makes a strong bridge. (a) False (b) True
37. 37.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) a ruler (d) a magnet
38. 38.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
39. 39.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
40. 40.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) the same number of (c) zero (d) fewer

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