Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 719 · 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.🏗️ Where does an eggshell get its strength from? (a) tubes (b) triangles (c) arches and domes
2. 2.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we measure it (c) we change it
3. 3.True or false: rolled paper tubes makes a strong bridge. (a) True (b) False
4. 4.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a torn flat sheet (c) rolled paper tubes (d) a flat tissue
5. 5.🔍 Which is the odd one out? (a) a torn flat sheet (b) one flat sheet (c) rolled paper tubes (d) a flat tissue
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) two books (c) sheets of paper (d) coins
7. 7.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a ruler (d) a balloon
9. 9.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) lick your fingers (c) wash your hands (d) skip washing
10. 10.🔍 Which is the odd one out? (a) paper with folded edges (b) rolled paper tubes (c) one flat sheet (d) a zigzag-folded sheet
11. 11.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
12. 12.True or false: yeast is not needed for the paper bridge. (a) True (b) False
13. 13.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
14. 14.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) low and steady (c) on a stool edge (d) high and wobbly
15. 15.🏗️ Where does a roof frame get its strength from? (a) triangles (b) arches and domes (c) tubes
16. 16.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a zigzag-folded sheet (c) one flat sheet (d) rolled paper tubes
17. 17.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
18. 18.🌉 Which of these makes a strong bridge? (a) a U-shaped channel (b) one flat sheet (c) a torn flat sheet (d) a flat tissue
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a magnet (c) two books (d) coins
20. 20.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) a temple dome (c) a round pillar (d) a hollow bird bone
21. 21.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) fewer coins (c) only water (d) more coins
22. 22.True or false: a round pillar gets its strength from arches or domes. (a) True (b) False
23. 23.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
24. 24.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) False (b) True
25. 25.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
26. 26.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) True (b) False
27. 27.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) not at all (c) more (d) less
28. 28.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a magnet (c) a balloon (d) sheets of paper
29. 29.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
30. 30.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) more (c) fewer (d) the same number of
31. 31.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
32. 32.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) rolled paper tubes (c) a flat tissue (d) paper with folded edges
33. 33.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we change it (c) we keep it the same
34. 34.⚖️ 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
35. 35.🌉 Which of these makes a weak bridge? (a) a torn flat sheet (b) paper with folded edges (c) a U-shaped channel (d) a zigzag-folded sheet
36. 36.⚖️ 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) where coins are placed
37. 37.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds are magnetic (c) folds add glue (d) folds make it wet
38. 38.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the triangle (c) the square (d) the star
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) turmeric powder (d) sheets of paper
40. 40.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed

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