Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 364 · 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 gap between books”? (a) we keep it the same (b) we measure it (c) we change it
2. 2.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) triangles (c) arches and domes
3. 3.True or false: two books is needed for the paper bridge. (a) False (b) True
4. 4.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
5. 5.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a torn flat sheet (c) paper with folded edges (d) one flat sheet
6. 6.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it sags and falls (c) it turns to card (d) it gets stronger
7. 7.True or false: an old stone bridge gets its strength from arches or domes. (a) False (b) True
8. 8.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we measure it (c) we keep it the same
9. 9.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) lick your fingers (d) wash your hands
10. 10.True or false: yeast is not needed for the paper bridge. (a) True (b) False
11. 11.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a battery cell (c) yeast (d) sheets of paper
12. 12.True or false: a flat tissue makes a strong bridge. (a) True (b) False
13. 13.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a battery cell (d) two books
14. 14.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
15. 15.🛟 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
16. 16.🌉 Which of these makes a strong bridge? (a) rolled paper tubes (b) a flat tissue (c) a torn flat sheet (d) a wet flat sheet
17. 17.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a battery cell (c) coins (d) a magnet
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a balloon (c) coins (d) two books
19. 19.🔍 Which is the odd one out? (a) one flat sheet (b) a zigzag-folded sheet (c) a torn flat sheet (d) a wet flat sheet
20. 20.True or false: a hollow bird bone gets its strength from arches or domes. (a) False (b) True
21. 21.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) upward (c) less (d) more
22. 22.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
23. 23.True or false: a temple dome gets its strength from arches or domes. (a) False (b) True
24. 24.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) an old stone bridge (c) a bridge truss (d) a hollow bird bone
25. 25.🔍 Which is the odd one out? (a) a U-shaped channel (b) rolled paper tubes (c) a zigzag-folded sheet (d) one flat sheet
26. 26.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) False (b) True
27. 27.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
28. 28.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) more (d) the same number of
29. 29.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
30. 30.⚖️ 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
31. 31.True or false: a bamboo pole gets its strength from triangles. (a) False (b) True
32. 32.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a roof frame (c) an electric tower (d) a bamboo pole
33. 33.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the star (c) the triangle (d) the square
34. 34.True or false: a round pillar gets its strength from triangles. (a) False (b) True
35. 35.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
36. 36.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds are magnetic (c) folds make it stiffer (d) folds make it wet
37. 37.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
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 kind of paper (c) coins it holds (d) the shape of the paper
39. 39.True or false: an eggshell gets its strength from arches or domes. (a) True (b) False
40. 40.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is the one thing we change. (a) True (b) False

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