Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 738 · 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 zigzag-folded sheet makes a weak bridge. (a) True (b) False
2. 2.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) a wet flat sheet (b) paper with folded edges (c) a flat tissue (d) one flat sheet
4. 4.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we keep it the same (c) we measure it
5. 5.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) more coins (c) the same coins (d) only water
6. 6.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) upward (c) more (d) not at all
7. 7.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
8. 8.🏗️ Which of these gets its strength from a tube shape? (a) a hollow bird bone (b) a roof frame (c) a bridge truss (d) an old stone bridge
9. 9.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) a ruler (d) a magnet
10. 10.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
11. 11.🏗️ Where does an old stone bridge get its strength from? (a) arches and domes (b) triangles (c) tubes
12. 12.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) the same number of (c) fewer (d) more
13. 13.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) a ruler (c) sheets of paper (d) two books
14. 14.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds make it stiffer (c) folds add glue (d) folds are magnetic
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 weak bridge? (a) one flat sheet (b) paper with folded edges (c) a U-shaped channel (d) rolled paper tubes
17. 17.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a wet flat sheet (c) a zigzag-folded sheet (d) rolled paper tubes
18. 18.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
19. 19.⚖️ 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
20. 20.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a bridge truss (c) an eggshell (d) an old stone bridge
21. 21.⚖️ 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
22. 22.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False
23. 23.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) False (b) True
24. 24.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a ruler (d) a mirror
25. 25.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
26. 26.True or false: a ruler is needed for the paper bridge. (a) True (b) False
27. 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a ruler (d) yeast
28. 28.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a temple dome (c) a round pillar (d) a roof frame
29. 29.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
30. 30.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) one flat sheet (b) a U-shaped channel (c) a torn flat sheet (d) a flat tissue
32. 32.True or false: a hollow bird bone gets its strength from arches or domes. (a) True (b) False
33. 33.🧺 Which of these is not needed for the paper bridge? (a) coins (b) yeast (c) sheets of paper (d) a ruler
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
35. 35.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) triangles (c) tubes
36. 36.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a ruler (c) a balloon (d) coins
37. 37.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
38. 38.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) lick your fingers (c) rub your eyes (d) wash your hands
39. 39.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a flat tissue (c) a zigzag-folded sheet (d) a wet flat sheet
40. 40.🔍 Which is the odd one out? (a) one flat sheet (b) a U-shaped channel (c) rolled paper tubes (d) a zigzag-folded sheet

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