Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 110 · 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.🌉 Which of these makes a strong bridge? (a) a U-shaped channel (b) a wet flat sheet (c) a flat tissue (d) one flat sheet
2. 2.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the shape of the paper (c) the kind of coins (d) the gap between books
3. 3.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
4. 4.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) tubes (c) arches and domes
5. 5.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) its curved arch shape (c) it is made of steel (d) it is magnetic
6. 6.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a wet flat sheet (c) a zigzag-folded sheet (d) a U-shaped channel
7. 7.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) tubes (c) arches and domes
8. 8.True or false: coins is needed for the paper bridge. (a) True (b) False
9. 9.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) a ruler (d) turmeric powder
10. 10.⚖️ 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
11. 11.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
12. 12.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) sheets of paper (c) yeast (d) a mirror
13. 13.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a zigzag-folded sheet (c) a flat tissue (d) one flat sheet
14. 14.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
15. 15.🛟 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
16. 16.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) coins (c) two books (d) a mirror
17. 17.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) a balloon (d) a ruler
18. 18.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) the gap between books (c) the kind of coins (d) the shape of the paper
19. 19.🏗️ Where does a round pillar get its strength from? (a) triangles (b) tubes (c) arches and domes
20. 20.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
21. 21.True or false: a ruler is needed for the paper bridge. (a) True (b) False
22. 22.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) more coins (c) only water (d) the same coins
23. 23.🌉 Which of these makes a weak bridge? (a) a torn flat sheet (b) rolled paper tubes (c) a zigzag-folded sheet (d) paper with folded edges
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.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds are magnetic (c) folds make it stiffer (d) folds make it wet
26. 26.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) True (b) False
28. 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) two books (c) sheets of paper (d) coins
29. 29.True or false: a roof frame gets its strength from triangles. (a) False (b) True
30. 30.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) turmeric powder (c) yeast (d) a ruler
31. 31.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
32. 32.True or false: an eggshell gets its strength from arches or domes. (a) True (b) False
33. 33.🛟 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
34. 34.🔍 Which is the odd one out? (a) a torn flat sheet (b) paper with folded edges (c) a U-shaped channel (d) rolled paper tubes
35. 35.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) a ruler (c) two books (d) sheets of paper
36. 36.🔍 Which is the odd one out? (a) one flat sheet (b) a flat tissue (c) a wet flat sheet (d) rolled paper tubes
37. 37.🔍 Which is the odd one out? (a) rolled paper tubes (b) a U-shaped channel (c) paper with folded edges (d) one flat sheet
38. 38.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we change it (c) we measure it
39. 39.🏗️ Where does an eggshell get its strength from? (a) tubes (b) arches and domes (c) triangles
40. 40.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) a U-shaped channel (c) rolled paper tubes (d) a zigzag-folded sheet

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