Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 437 · 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 of these makes a weak bridge? (a) a zigzag-folded sheet (b) a wet flat sheet (c) a U-shaped channel (d) paper with folded edges
2. 2.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a battery cell (c) coins (d) sheets of paper
3. 3.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a wet flat sheet (c) rolled paper tubes (d) a U-shaped channel
4. 4.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) more coins (d) fewer coins
5. 5.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we change it (c) we keep it the same
6. 6.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
7. 7.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we keep it the same (c) we measure it
8. 8.🔍 Which is the odd one out? (a) a torn flat sheet (b) paper with folded edges (c) a wet flat sheet (d) a flat tissue
9. 9.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is the one thing we change. (a) True (b) False
10. 10.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) coins it holds (c) the gap between books (d) the shape of the paper
11. 11.True or false: yeast is needed for the paper bridge. (a) False (b) True
12. 12.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) on top of a pet (d) low and steady
13. 13.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) two books (c) sheets of paper (d) a ruler
14. 14.🔍 Which is the odd one out? (a) paper with folded edges (b) one flat sheet (c) rolled paper tubes (d) a U-shaped channel
15. 15.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) turmeric powder (d) a ruler
16. 16.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
17. 17.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) one flat sheet (c) a wet flat sheet (d) a U-shaped channel
18. 18.🌉 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
19. 19.True or false: a mirror is needed for the paper bridge. (a) False (b) True
20. 20.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
21. 21.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a hollow bird bone (c) a roof frame (d) a bridge truss
22. 22.🏗️ Which of these gets its strength from a tube shape? (a) a round pillar (b) a temple dome (c) a roof frame (d) an electric tower
23. 23.True or false: a bridge truss gets its strength from a tube shape. (a) True (b) False
24. 24.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) paper with folded edges (c) rolled paper tubes (d) one flat sheet
25. 25.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) a mirror (d) coins
26. 26.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) True (b) False
28. 28.True or false: an old stone bridge gets its strength from triangles. (a) True (b) False
29. 29.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a mirror (c) a ruler (d) yeast
30. 30.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of coins (b) the shape of the paper (c) coins it holds
31. 31.True or false: an eggshell gets its strength from arches or domes. (a) True (b) False
32. 32.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) the kind of paper (c) coins it holds (d) the shape of the paper
33. 33.🏗️ Where does a temple dome get its strength from? (a) arches and domes (b) tubes (c) triangles
34. 34.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it sags and falls (c) it turns to card (d) it gets stronger
35. 35.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) False (b) True
36. 36.True or false: paper with folded edges makes a strong bridge. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) one flat sheet (b) a wet flat sheet (c) a flat tissue (d) a U-shaped channel
38. 38.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
39. 39.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
40. 40.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge

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