Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 341 · 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.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) more (c) not at all (d) upward
2. 2.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (a) True (b) False
3. 3.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
4. 4.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) fewer (c) more (d) zero
5. 5.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a temple dome (c) a roof frame (d) a bamboo pole
6. 6.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of paper (b) coins it holds (c) the shape of the paper
7. 7.🏗️ Where does an electric tower get its strength from? (a) tubes (b) arches and domes (c) triangles
8. 8.🌉 Which of these makes a strong bridge? (a) paper with folded edges (b) one flat sheet (c) a wet flat sheet (d) a torn flat sheet
9. 9.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) high and wobbly (c) on top of a pet (d) on a stool edge
10. 10.True or false: a balloon is not needed for the paper bridge. (a) True (b) False
11. 11.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) turmeric powder (c) two books (d) a magnet
12. 12.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
13. 13.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
14. 14.True or false: yeast is needed for the paper bridge. (a) False (b) True
15. 15.⚖️ 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
16. 16.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) sheets of paper (d) a mirror
17. 17.True or false: an eggshell gets its strength from triangles. (a) True (b) False
18. 18.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) turmeric powder (c) yeast (d) coins
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a magnet (c) a ruler (d) sheets of paper
20. 20.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) False (b) True
21. 21.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a round pillar (c) an electric tower (d) a hollow bird bone
22. 22.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
23. 23.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
24. 24.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) triangles (c) tubes
25. 25.🏗️ Where does an eggshell get its strength from? (a) tubes (b) arches and domes (c) triangles
26. 26.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) False (b) True
27. 27.⚖️ 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
28. 28.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we change it (c) we keep it the same
29. 29.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
30. 30.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a torn flat sheet (c) a wet flat sheet (d) rolled paper tubes
31. 31.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
32. 32.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) the kind of paper (c) the shape of the paper (d) coins it holds
33. 33.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) turmeric powder (c) a battery cell (d) a magnet
34. 34.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) tubes (c) arches and domes
35. 35.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds add glue (c) folds are magnetic (d) folds make it wet
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) where coins are placed (c) the kind of coins (d) the gap between books
37. 37.⚖️ 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 measure it (c) we change it
38. 38.🔍 Which is the odd one out? (a) a torn flat sheet (b) a wet flat sheet (c) paper with folded edges (d) a flat tissue
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) two books (c) coins (d) sheets of paper
40. 40.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it floats up (c) it sags and falls (d) it gets stronger

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