Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 249 · 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 is not needed for the paper bridge? (a) two books (b) sheets of paper (c) coins (d) a balloon
2. 2.🏗️ Where does an old stone bridge get its strength from? (a) arches and domes (b) tubes (c) triangles
3. 3.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we measure it (c) we keep it the same
4. 4.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
5. 5.🔍 Which is the odd one out? (a) one flat sheet (b) a wet flat sheet (c) a torn flat sheet (d) a U-shaped channel
6. 6.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
7. 7.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
8. 8.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) low and steady (c) on top of a pet (d) on a stool edge
9. 9.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
10. 10.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
11. 11.⚖️ 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 measure it (c) we change it
12. 12.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) wash your hands (c) lick your fingers (d) rub your eyes
13. 13.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it gets stronger (c) it sags and falls (d) it turns to card
14. 14.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) an old stone bridge (c) a roof frame (d) a hollow bird bone
15. 15.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we measure it (c) we keep it the same
16. 16.🔍 Which is the odd one out? (a) one flat sheet (b) a wet flat sheet (c) a torn flat sheet (d) a zigzag-folded sheet
17. 17.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) tubes (c) triangles
18. 18.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) upward (c) not at all (d) less
19. 19.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (a) False (b) True
20. 20.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
21. 21.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds are magnetic (c) folds make it wet (d) folds make it stiffer
22. 22.True or false: a temple dome gets its strength from arches or domes. (a) False (b) True
23. 23.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) a balloon (d) two books
24. 24.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a ruler (d) a magnet
25. 25.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we measure it (c) we keep it the same
26. 26.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
27. 27.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
28. 28.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) turmeric powder (c) two books (d) coins
29. 29.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
30. 30.True or false: two books is not needed for the paper bridge. (a) False (b) True
31. 31.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) where coins are placed
32. 32.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
33. 33.True or false: a hollow bird bone gets its strength from triangles. (a) False (b) True
34. 34.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a bridge truss (c) an old stone bridge (d) a temple dome
35. 35.True or false: yeast is not needed for the paper bridge. (a) True (b) False
36. 36.True or false: a mirror is not needed for the paper bridge. (a) True (b) False
37. 37.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) the kind of coins
38. 38.🔍 Which is the odd one out? (a) paper with folded edges (b) one flat sheet (c) rolled paper tubes (d) a zigzag-folded sheet
39. 39.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
40. 40.🏗️ Where does a temple dome get its strength from? (a) triangles (b) tubes (c) arches and domes

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