Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 146 · 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? Which of these is the one thing we change? (a) the shape of the paper (b) coins it holds (c) where coins are placed (d) the kind of paper
2. 2.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
3. 3.True or false: a hollow bird bone gets its strength from triangles. (a) True (b) False
4. 4.True or false: an old stone bridge gets its strength from triangles. (a) False (b) True
5. 5.True or false: coins is not needed for the paper bridge. (a) True (b) False
6. 6.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) arches and domes (c) triangles
7. 7.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we keep it the same (b) we change it (c) we measure it
8. 8.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) triangles (c) arches and domes
9. 9.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
10. 10.True or false: a bamboo pole gets its strength from a tube shape. (a) True (b) False
11. 11.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False
12. 12.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a bridge truss (c) a round pillar (d) an electric tower
13. 13.True or false: an eggshell gets its strength from triangles. (a) True (b) False
14. 14.🛟 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
15. 15.True or false: a flat tissue makes a strong bridge. (a) True (b) False
16. 16.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
17. 17.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it stiffer (c) folds make it wet (d) folds add glue
18. 18.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we keep it the same (b) we measure it (c) we change it
19. 19.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a magnet (c) a ruler (d) turmeric powder
20. 20.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) coins (d) a magnet
21. 21.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) where coins are placed (c) the shape of the paper
22. 22.🌉 Which of these makes a weak bridge? (a) a torn flat sheet (b) a zigzag-folded sheet (c) rolled paper tubes (d) a U-shaped channel
23. 23.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) wash your hands (c) skip washing (d) rub your eyes
24. 24.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
25. 25.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) tubes (c) triangles
26. 26.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) two books (c) coins (d) yeast
27. 27.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True
28. 28.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) an old stone bridge (c) a hollow bird bone (d) a bridge truss
29. 29.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) rolled paper tubes (c) a flat tissue (d) a torn flat sheet
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a magnet (c) sheets of paper (d) a ruler
31. 31.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
32. 32.⚖️ 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
33. 33.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) not at all (c) more (d) less
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a balloon (c) two books (d) sheets of paper
35. 35.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) one flat sheet (c) a U-shaped channel (d) rolled paper tubes
36. 36.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a roof frame (c) a temple dome (d) a hollow bird bone
37. 37.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
38. 38.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) True (b) False
39. 39.True or false: an old stone bridge gets its strength from arches or domes. (a) False (b) True
40. 40.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed

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