Paper Bridge STEM Challenge Worksheet

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

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