Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 46 · 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.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) more coins (c) fewer coins (d) the same coins
2. 2.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
3. 3.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a round pillar (c) a bridge truss (d) a temple dome
4. 4.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
5. 5.🔍 Which is the odd one out? (a) paper with folded edges (b) a U-shaped channel (c) a zigzag-folded sheet (d) one flat sheet
6. 6.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) skip washing (c) rub your eyes (d) wash your hands
7. 7.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
8. 8.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
9. 9.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a wet flat sheet (c) a zigzag-folded sheet (d) paper with folded edges
10. 10.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) two books (d) a mirror
11. 11.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a mirror (d) coins
12. 12.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
13. 13.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
14. 14.🏗️ Where does an electric tower get its strength from? (a) triangles (b) arches and domes (c) tubes
15. 15.⚖️ 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
16. 16.🏗️ Which of these gets its strength from a tube shape? (a) a bamboo pole (b) an old stone bridge (c) a roof frame (d) a bridge truss
17. 17.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
18. 18.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) zero (c) the same number of (d) fewer
19. 19.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
20. 20.True or false: two books is not needed for the paper bridge. (a) True (b) False
21. 21.True or false: a flat tissue makes a weak bridge. (a) False (b) True
22. 22.⚖️ 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
23. 23.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
24. 24.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a balloon (c) a battery cell (d) a ruler
25. 25.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) a torn flat sheet (d) a zigzag-folded sheet
26. 26.True or false: a hollow bird bone gets its strength from arches or domes. (a) False (b) True
27. 27.🌉 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
28. 28.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we change it (c) we keep it the same
29. 29.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) an old stone bridge (c) a hollow bird bone (d) a roof frame
30. 30.🥚 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 magnetic (d) it is made of steel
31. 31.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) coins (d) turmeric powder
32. 32.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) paper with folded edges (c) a wet flat sheet (d) one flat sheet
33. 33.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True
34. 34.⚖️ 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 measure it (c) we change it
35. 35.True or false: a round pillar gets its strength from a tube shape. (a) True (b) False
36. 36.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) a balloon (d) two books
37. 37.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a balloon (c) yeast (d) two books
38. 38.🏗️ Where does a round pillar get its strength from? (a) tubes (b) triangles (c) arches and domes
39. 39.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) not at all (c) upward (d) less
40. 40.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False

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