Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 184 · 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.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) low and steady (d) on a stool edge
2. 2.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
3. 3.🧺 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) coins
4. 4.🔍 Which is the odd one out? (a) rolled paper tubes (b) a torn flat sheet (c) a wet flat sheet (d) one flat sheet
5. 5.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) less (c) not at all (d) more
6. 6.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) paper with folded edges (c) a torn flat sheet (d) a zigzag-folded sheet
7. 7.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) where coins are placed (c) the gap between books (d) coins it holds
8. 8.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) triangles (c) tubes
9. 9.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a mirror (c) coins (d) two books
10. 10.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we keep it the same (b) we measure it (c) we change it
11. 11.True or false: two books is not needed for the paper bridge. (a) False (b) True
12. 12.⚖️ 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
13. 13.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds are magnetic (c) folds add glue (d) folds make it wet
14. 14.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the shape of the paper (b) where coins are placed (c) the kind of paper (d) the gap between books
15. 15.True or false: yeast is not needed for the paper bridge. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) rolled paper tubes (b) a zigzag-folded sheet (c) one flat sheet (d) paper with folded edges
17. 17.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
18. 18.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) the same number of (c) fewer (d) zero
19. 19.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we keep it the same (b) we measure it (c) we change it
20. 20.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) only water (c) fewer coins (d) more coins
21. 21.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
22. 22.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
23. 23.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a U-shaped channel (c) one flat sheet (d) a torn flat sheet
24. 24.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we measure it (c) we keep it the same
25. 25.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) yeast (c) turmeric powder (d) sheets of paper
26. 26.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) an eggshell (c) a round pillar (d) a bridge truss
27. 27.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) skip washing (d) wash your hands
28. 28.True or false: a magnet is not needed for the paper bridge. (a) True (b) False
29. 29.🧺 Which of these is needed for the paper bridge? (a) coins (b) a magnet (c) a balloon (d) turmeric powder
30. 30.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) one flat sheet (c) paper with folded edges (d) a U-shaped channel
31. 31.🔍 Which is the odd one out? (a) paper with folded edges (b) a wet flat sheet (c) a U-shaped channel (d) rolled paper tubes
32. 32.True or false: a round pillar gets its strength from triangles. (a) False (b) True
33. 33.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a ruler (d) yeast
34. 34.🔍 Which is the odd one out? (a) rolled paper tubes (b) a zigzag-folded sheet (c) a flat tissue (d) paper with folded edges
35. 35.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) a temple dome (c) an electric tower (d) a roof frame
36. 36.⚖️ 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
37. 37.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a mirror (c) a ruler (d) coins
38. 38.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a flat tissue (c) one flat sheet (d) paper with folded edges
39. 39.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
40. 40.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge

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