Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 854 · 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.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds add glue (c) folds make it wet (d) folds are magnetic
2. 2.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) wash your hands (c) skip washing (d) lick your fingers
3. 3.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) coins it holds (c) the gap between books (d) where coins are placed
4. 4.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) paper with folded edges (c) rolled paper tubes (d) a torn flat sheet
5. 5.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a balloon (c) two books (d) coins
6. 6.🏗️ Where does a round pillar get its strength from? (a) tubes (b) triangles (c) arches and domes
7. 7.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
8. 8.🏗️ Which of these gets its strength from a tube shape? (a) a hollow bird bone (b) a roof frame (c) an electric tower (d) a bridge truss
9. 9.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
10. 10.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) where coins are placed
11. 11.🔍 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
12. 12.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we change it (c) we keep it the same
13. 13.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
14. 14.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a magnet (c) turmeric powder (d) two books
15. 15.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we keep it the same (c) we measure it
16. 16.True or false: coins is not needed for the paper bridge. (a) True (b) False
17. 17.True or false: two books is needed for the paper bridge. (a) False (b) True
18. 18.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we keep it the same (b) we change it (c) we measure it
19. 19.🏗️ Where does an electric tower get its strength from? (a) triangles (b) tubes (c) arches and domes
20. 20.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a battery cell (c) a mirror (d) a ruler
21. 21.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) two books (c) a ruler (d) yeast
22. 22.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) not at all (c) more (d) upward
23. 23.True or false: a round pillar gets its strength from triangles. (a) True (b) False
24. 24.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
25. 25.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) fewer (d) more
26. 26.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a flat tissue (c) a U-shaped channel (d) a zigzag-folded sheet
27. 27.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
28. 28.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) the kind of coins (c) the shape of the paper (d) the kind of paper
29. 29.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
30. 30.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
31. 31.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
32. 32.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) an old stone bridge (c) a round pillar (d) a roof frame
33. 33.True or false: yeast is needed for the paper bridge. (a) True (b) False
34. 34.🌉 Which of these makes a strong bridge? (a) a U-shaped channel (b) one flat sheet (c) a flat tissue (d) a wet flat sheet
35. 35.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) coins (c) two books (d) sheets of paper
36. 36.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) one flat sheet (d) rolled paper tubes
37. 37.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) high and wobbly (c) low and steady (d) on top of a pet
38. 38.True or false: a mirror is needed for the paper bridge. (a) False (b) True
39. 39.True or false: a battery cell is not needed for the paper bridge. (a) True (b) False
40. 40.🧺 Which of these is not needed for the paper bridge? (a) turmeric powder (b) coins (c) sheets of paper (d) a ruler

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