Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 419 · 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 is the odd one out? (a) a flat tissue (b) rolled paper tubes (c) paper with folded edges (d) a U-shaped channel
2. 2.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) a battery cell (c) a mirror (d) a balloon
3. 3.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
4. 4.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) on a stool edge (c) low and steady (d) high and wobbly
5. 5.🔮 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
6. 6.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
7. 7.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
8. 8.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we measure it (c) we keep it the same
9. 9.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) the same number of (d) zero
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.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) yeast (c) coins (d) two books
12. 12.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a mirror (c) a magnet (d) a ruler
13. 13.True or false: a round pillar gets its strength from triangles. (a) True (b) False
14. 14.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
15. 15.🔍 Which is the odd one out? (a) a torn flat sheet (b) rolled paper tubes (c) a zigzag-folded sheet (d) a U-shaped channel
16. 16.True or false: a flat tissue makes a weak bridge. (a) False (b) True
17. 17.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
18. 18.⚖️ 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 change it (c) we measure it
19. 19.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
20. 20.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
21. 21.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) one flat sheet (d) paper with folded edges
22. 22.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we keep it the same (c) we change it
23. 23.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) rub your eyes (c) wash your hands (d) lick your fingers
24. 24.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a bamboo pole (c) an eggshell (d) a bridge truss
25. 25.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) one flat sheet (c) a wet flat sheet (d) rolled paper tubes
26. 26.🧺 Which of these is needed for the paper bridge? (a) two books (b) a balloon (c) turmeric powder (d) a battery cell
27. 27.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a mirror (c) coins (d) two books
28. 28.🏗️ Where does an old stone bridge get its strength from? (a) arches and domes (b) tubes (c) triangles
29. 29.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
30. 30.True or false: yeast is needed for the paper bridge. (a) False (b) True
31. 31.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) tubes (c) triangles
32. 32.🏗️ Which of these gets its strength from arches or domes? (a) an eggshell (b) a hollow bird bone (c) a roof frame (d) a bridge truss
33. 33.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds add glue (c) folds are magnetic (d) folds make it wet
34. 34.True or false: an old stone bridge gets its strength from a tube shape. (a) True (b) False
35. 35.True or false: a bamboo pole gets its strength from triangles. (a) False (b) True
36. 36.🌉 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
37. 37.True or false: yeast is not needed for the paper bridge. (a) True (b) False
38. 38.🔍 Which is the odd one out? (a) rolled paper tubes (b) paper with folded edges (c) a wet flat sheet (d) a zigzag-folded sheet
39. 39.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) a hollow bird bone (c) a temple dome (d) a bridge truss
40. 40.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed

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