Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 244 · 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 are magnetic (b) folds make it stiffer (c) folds add glue (d) folds make it wet
2. 2.🧺 Which of these is not needed for the paper bridge? (a) a battery cell (b) a ruler (c) coins (d) two books
3. 3.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) True (b) False
4. 4.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
5. 5.🏗️ Where does a temple dome get its strength from? (a) tubes (b) triangles (c) arches and domes
6. 6.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) turmeric powder (c) coins (d) a battery cell
7. 7.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) low and steady (d) on a stool edge
8. 8.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
9. 9.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a round pillar (c) a temple dome (d) an electric tower
10. 10.⚖️ 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
11. 11.True or false: one flat sheet makes a strong bridge. (a) True (b) False
12. 12.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a U-shaped channel (c) rolled paper tubes (d) a flat tissue
13. 13.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) tubes (c) triangles
14. 14.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) more (c) zero (d) the same number of
15. 15.🏗️ Where does an old stone bridge get its strength from? (a) arches and domes (b) triangles (c) tubes
16. 16.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
17. 17.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) tubes (c) triangles
18. 18.True or false: a roof frame gets its strength from a tube shape. (a) False (b) True
19. 19.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
20. 20.🏗️ Where does an eggshell get its strength from? (a) triangles (b) tubes (c) arches and domes
21. 21.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
22. 22.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) less (c) more (d) upward
23. 23.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
24. 24.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we measure it (b) we change it (c) we keep it the same
25. 25.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) a balloon (d) sheets of paper
26. 26.🔍 Which is the odd one out? (a) rolled paper tubes (b) a U-shaped channel (c) a zigzag-folded sheet (d) a flat tissue
27. 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) coins (d) a magnet
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 keep it the same (c) we change it
29. 29.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
30. 30.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
31. 31.True or false: a mirror is needed for the paper bridge. (a) True (b) False
32. 32.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) a magnet (c) turmeric powder (d) a balloon
33. 33.🔍 Which is the odd one out? (a) one flat sheet (b) rolled paper tubes (c) a zigzag-folded sheet (d) paper with folded edges
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
35. 35.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) a hollow bird bone (c) a roof frame (d) an old stone bridge
36. 36.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
37. 37.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a balloon (c) sheets of paper (d) a ruler
38. 38.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) an old stone bridge (c) a bamboo pole (d) a temple dome
39. 39.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) tubes (c) arches and domes
40. 40.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed

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