Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 644 · 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.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
2. 2.True or false: a bridge truss gets its strength from arches or domes. (a) False (b) True
3. 3.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
4. 4.⚖️ 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 paper (c) coins it holds
5. 5.True or false: a round pillar gets its strength from triangles. (a) True (b) False
6. 6.True or false: a U-shaped channel makes a strong bridge. (a) True (b) False
7. 7.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) a battery cell (d) coins
8. 8.🔍 Which is the odd one out? (a) paper with folded edges (b) one flat sheet (c) a torn flat sheet (d) a flat tissue
9. 9.🔮 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
10. 10.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
11. 11.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) a balloon (d) coins
12. 12.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) False (b) True
13. 13.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
14. 14.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) fewer coins (d) only water
15. 15.🌉 Which of these makes a strong bridge? (a) a zigzag-folded sheet (b) one flat sheet (c) a torn flat sheet (d) a wet flat sheet
16. 16.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) True (b) False
17. 17.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) a bamboo pole (c) an eggshell (d) a roof frame
18. 18.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) an electric tower (c) a round pillar (d) a temple dome
19. 19.True or false: a battery cell is not needed for the paper bridge. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) one flat sheet (b) a zigzag-folded sheet (c) paper with folded edges (d) a U-shaped channel
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) coins (d) a battery cell
22. 22.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it wet (c) folds make it stiffer (d) folds are magnetic
23. 23.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) rolled paper tubes (c) a torn flat sheet (d) a U-shaped channel
24. 24.True or false: a hollow bird bone gets its strength from arches or domes. (a) False (b) True
25. 25.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
26. 26.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) True (b) False
27. 27.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we measure it (c) we keep it the same
28. 28.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) arches and domes (c) tubes
29. 29.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we keep it the same (c) we measure it
30. 30.True or false: a flat tissue makes a strong bridge. (a) False (b) True
31. 31.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) a hollow bird bone (c) an old stone bridge (d) an electric tower
32. 32.🏗️ Where does an eggshell get its strength from? (a) triangles (b) tubes (c) arches and domes
33. 33.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) turmeric powder (c) coins (d) yeast
34. 34.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) high and wobbly (c) on top of a pet (d) on a stool edge
35. 35.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) turmeric powder (d) a ruler
36. 36.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
37. 37.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the gap between books (b) where coins are placed (c) the shape of the paper (d) the kind of coins
38. 38.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is very hot (c) it is magnetic (d) its curved arch shape
39. 39.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
40. 40.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) wash your hands (c) rub your eyes (d) skip washing

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