Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 642 · 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: turmeric powder is needed for the paper bridge. (a) False (b) True
2. 2.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it sags and falls (c) it floats up (d) it turns to card
3. 3.🏗️ Which of these gets its strength from arches or domes? (a) an eggshell (b) a hollow bird bone (c) a round pillar (d) a roof frame
4. 4.True or false: a mirror is needed for the paper bridge. (a) False (b) True
5. 5.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we keep it the same (c) we change it
6. 6.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) triangles (c) arches and domes
7. 7.🧺 Which of these is not needed for the paper bridge? (a) coins (b) two books (c) a ruler (d) turmeric powder
8. 8.🧺 Which of these is not needed for the paper bridge? (a) a balloon (b) coins (c) a ruler (d) sheets of paper
9. 9.🏗️ Where does an electric tower get its strength from? (a) tubes (b) arches and domes (c) triangles
10. 10.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a ruler (c) sheets of paper (d) a magnet
11. 11.True or false: paper with folded edges makes a strong bridge. (a) True (b) False
12. 12.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) the shape of the paper (c) the kind of paper (d) coins it holds
13. 13.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True
14. 14.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
15. 15.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) an old stone bridge (c) a roof frame (d) a hollow bird bone
16. 16.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) tubes (c) arches and domes
17. 17.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
18. 18.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) triangles (c) tubes
19. 19.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
20. 20.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) fewer (c) zero (d) more
21. 21.🔍 Which is the odd one out? (a) a flat tissue (b) a torn flat sheet (c) one flat sheet (d) paper with folded edges
22. 22.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
23. 23.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it wet (c) folds add glue (d) folds make it stiffer
24. 24.⚖️ 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 paper (c) coins it holds
25. 25.True or false: a hollow bird bone gets its strength from a tube shape. (a) False (b) True
26. 26.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a battery cell (c) sheets of paper (d) a magnet
27. 27.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) a bridge truss (c) an eggshell (d) a temple dome
28. 28.🧺 Which of these is needed for the paper bridge? (a) a ruler (b) a balloon (c) a mirror (d) turmeric powder
29. 29.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) turmeric powder (c) yeast (d) coins
30. 30.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the triangle (c) the heart shape (d) the square
31. 31.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) two books (c) coins (d) a ruler
32. 32.🔍 Which is the odd one out? (a) a wet flat sheet (b) a torn flat sheet (c) a flat tissue (d) a U-shaped channel
33. 33.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a magnet (c) sheets of paper (d) two books
34. 34.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
35. 35.🛟 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
36. 36.True or false: coins is needed for the paper bridge. (a) True (b) False
37. 37.True or false: a round pillar gets its strength from arches or domes. (a) True (b) False
38. 38.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the gap between books (b) the shape of the paper (c) the kind of coins (d) the kind of paper
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) a U-shaped channel (b) a zigzag-folded sheet (c) a torn flat sheet (d) paper with folded edges

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