Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 805 · 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 a bamboo pole get its strength from? (a) tubes (b) triangles (c) arches and domes
2. 2.🏗️ Which of these gets its strength from a tube shape? (a) a round pillar (b) an old stone bridge (c) a bridge truss (d) a roof frame
3. 3.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) turmeric powder (c) a ruler (d) sheets of paper
4. 4.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) where coins are placed (c) the kind of paper (d) coins it holds
5. 5.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) the same number of (c) fewer (d) more
6. 6.⚖️ 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
7. 7.True or false: a bamboo pole gets its strength from triangles. (a) False (b) True
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a balloon (c) sheets of paper (d) coins
9. 9.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a magnet (c) coins (d) a mirror
10. 10.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) not at all (c) less (d) more
11. 11.🔍 Which is the odd one out? (a) a torn flat sheet (b) a U-shaped channel (c) a zigzag-folded sheet (d) paper with folded edges
12. 12.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) a roof frame (c) an eggshell (d) a hollow bird bone
13. 13.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a balloon (c) a battery cell (d) two books
14. 14.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) low and steady (d) on top of a pet
15. 15.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it stiffer (c) folds make it wet (d) folds add glue
16. 16.🔍 Which is the odd one out? (a) a torn flat sheet (b) one flat sheet (c) a wet flat sheet (d) a zigzag-folded sheet
17. 17.🔍 Which is the odd one out? (a) a flat tissue (b) a U-shaped channel (c) a wet flat sheet (d) one flat sheet
18. 18.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) wash your hands (c) skip washing (d) lick your fingers
19. 19.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a temple dome (c) a roof frame (d) a bamboo pole
20. 20.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the kind of coins (c) coins it holds
21. 21.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) triangles (c) tubes
22. 22.True or false: a roof frame gets its strength from triangles. (a) True (b) False
23. 23.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a battery cell (c) two books (d) a ruler
24. 24.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) the kind of coins (c) the shape of the paper (d) coins it holds
25. 25.⚖️ 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 change it (c) we measure it
26. 26.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is made of steel (c) it is very hot (d) its curved arch shape
27. 27.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
28. 28.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) where coins are placed (b) coins it holds (c) the shape of the paper
29. 29.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) a magnet (d) two books
30. 30.True or false: a ruler is not needed for the paper bridge. (a) True (b) False
31. 31.🧺 Which of these is needed for the paper bridge? (a) a ruler (b) a magnet (c) a battery cell (d) a mirror
32. 32.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we keep it the same (c) we measure it
33. 33.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) a U-shaped channel (b) a zigzag-folded sheet (c) paper with folded edges (d) one flat sheet
35. 35.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) coins (c) sheets of paper (d) two books
36. 36.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
37. 37.True or false: a bridge truss gets its strength from arches or domes. (a) True (b) False
38. 38.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
39. 39.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) rolled paper tubes (c) a zigzag-folded sheet (d) a flat tissue
40. 40.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False

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