Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 540 · 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: a mirror is not needed for the paper bridge. (a) False (b) True
2. 2.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) more (c) zero (d) the same number of
3. 3.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
4. 4.🏗️ Where does a temple dome get its strength from? (a) triangles (b) arches and domes (c) tubes
5. 5.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) tubes (c) triangles
6. 6.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) True (b) False
7. 7.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
8. 8.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of paper (b) the shape of the paper (c) coins it holds
9. 9.🔍 Which is the odd one out? (a) a flat tissue (b) a wet flat sheet (c) rolled paper tubes (d) one flat sheet
10. 10.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the gap between books (b) the shape of the paper (c) coins it holds
11. 11.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) a balloon (d) a ruler
12. 12.True or false: two books is not needed for the paper bridge. (a) False (b) True
13. 13.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a temple dome (c) a roof frame (d) an eggshell
14. 14.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it stiffer (c) folds make it wet (d) folds are magnetic
15. 15.True or false: a battery cell is needed for the paper bridge. (a) True (b) False
16. 16.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
17. 17.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) yeast (c) coins (d) sheets of paper
19. 19.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a bamboo pole (c) an old stone bridge (d) an electric tower
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) two books (c) a ruler (d) sheets of paper
21. 21.True or false: an electric tower gets its strength from arches or domes. (a) False (b) True
22. 22.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
23. 23.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we keep it the same (c) we change it
24. 24.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) fewer coins (c) more coins (d) the same coins
25. 25.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we measure it (c) we keep it the same
26. 26.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) the kind of coins
27. 27.🏗️ Which of these gets its strength from a tube shape? (a) a round pillar (b) a temple dome (c) a bridge truss (d) an electric tower
28. 28.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
29. 29.True or false: a hollow bird bone gets its strength from arches or domes. (a) False (b) True
30. 30.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
31. 31.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) high and wobbly (c) on a stool edge (d) on top of a pet
32. 32.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a bridge truss (c) a bamboo pole (d) a roof frame
33. 33.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) sheets of paper (c) a battery cell (d) yeast
34. 34.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
35. 35.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
36. 36.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) more (c) less (d) not at all
37. 37.🏗️ Which of these gets its strength from arches or domes? (a) a temple dome (b) a bamboo pole (c) a roof frame (d) a bridge truss
38. 38.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) a torn flat sheet (d) rolled paper tubes
39. 39.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) sheets of paper (c) coins (d) two books

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