Paper Bridge STEM Challenge Worksheet

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

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