Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 137 · 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 torn flat sheet makes a strong bridge. (a) True (b) False
2. 2.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a zigzag-folded sheet (c) rolled paper tubes (d) one flat sheet
3. 3.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a balloon (c) a ruler (d) a battery cell
4. 4.🔍 Which is the odd one out? (a) a flat tissue (b) paper with folded edges (c) a zigzag-folded sheet (d) a U-shaped channel
5. 5.⚖️ 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 change it (c) we measure it
6. 6.🧺 Which of these is not needed for the paper bridge? (a) a balloon (b) a ruler (c) sheets of paper (d) coins
7. 7.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) a roof frame (c) an eggshell (d) a round pillar
8. 8.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) one flat sheet (c) a flat tissue (d) a zigzag-folded sheet
9. 9.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) tubes (c) arches and domes
10. 10.True or false: a hollow bird bone gets its strength from arches or domes. (a) False (b) True
11. 11.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) two books (d) a magnet
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) sheets of paper (c) two books (d) coins
13. 13.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a round pillar (c) a temple dome (d) a bridge truss
14. 14.⚖️ 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
15. 15.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the square (c) the star (d) the heart shape
16. 16.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
17. 17.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) sheets of paper (c) a ruler (d) two books
18. 18.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) yeast (c) a battery cell (d) two books
19. 19.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
20. 20.True or false: a temple dome gets its strength from arches or domes. (a) False (b) True
21. 21.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) more coins (c) fewer coins (d) the same coins
22. 22.True or false: a flat tissue makes a strong bridge. (a) True (b) False
23. 23.True or false: a temple dome gets its strength from triangles. (a) True (b) False
24. 24.🏗️ Where does an old stone bridge get its strength from? (a) arches and domes (b) triangles (c) tubes
25. 25.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it wet (c) folds add glue (d) folds make it stiffer
26. 26.⚖️ 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
27. 27.True or false: yeast is needed for the paper bridge. (a) True (b) False
28. 28.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) False (b) True
29. 29.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) on a stool edge (c) low and steady (d) high and wobbly
30. 30.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) one flat sheet (c) paper with folded edges (d) a flat tissue
31. 31.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) wash your hands (c) rub your eyes (d) lick your fingers
32. 32.🧺 Which of these is not needed for the paper bridge? (a) a battery cell (b) two books (c) a ruler (d) coins
33. 33.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True
34. 34.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
35. 35.True or false: two books is needed for the paper bridge. (a) True (b) False
36. 36.True or false: a ruler is needed for the paper bridge. (a) False (b) True
37. 37.True or false: a mirror is needed for the paper bridge. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) paper with folded edges (b) a zigzag-folded sheet (c) a wet flat sheet (d) a U-shaped channel
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) True (b) False
40. 40.🔮 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

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