Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 800 · 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 needed for the paper bridge? (a) turmeric powder (b) a ruler (c) yeast (d) a mirror
2. 2.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) tubes (c) triangles
3. 3.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a flat tissue (c) rolled paper tubes (d) one flat sheet
4. 4.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a U-shaped channel (c) one flat sheet (d) paper with folded edges
5. 5.True or false: paper with folded edges makes a strong bridge. (a) True (b) False
6. 6.True or false: one flat sheet makes a weak bridge. (a) True (b) False
7. 7.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds add glue (c) folds make it wet (d) folds make it stiffer
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) two books (c) sheets of paper (d) coins
9. 9.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
10. 10.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) wash your hands (c) skip washing (d) lick your fingers
11. 11.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) coins it holds (c) the kind of paper (d) the gap between books
12. 12.True or false: a hollow bird bone gets its strength from triangles. (a) True (b) False
13. 13.True or false: a mirror is needed for the paper bridge. (a) False (b) True
14. 14.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we keep it the same (c) we change it
15. 15.🔍 Which is the odd one out? (a) a wet flat sheet (b) a flat tissue (c) a torn flat sheet (d) paper with folded edges
16. 16.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a balloon (c) coins (d) sheets of paper
17. 17.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) more (d) the same number of
18. 18.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) False (b) True
19. 19.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) two books (c) a mirror (d) a magnet
20. 20.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
21. 21.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
22. 22.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the gap between books (c) the shape of the paper
23. 23.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
24. 24.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a temple dome (c) a roof frame (d) a hollow bird bone
25. 25.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) high and wobbly (c) on a stool edge (d) on top of a pet
26. 26.🔍 Which is the odd one out? (a) a wet flat sheet (b) a U-shaped channel (c) a zigzag-folded sheet (d) rolled paper tubes
27. 27.True or false: a battery cell is needed for the paper bridge. (a) False (b) True
28. 28.⚖️ 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
29. 29.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) turmeric powder (d) sheets of paper
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) yeast (c) a ruler (d) sheets of paper
31. 31.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the gap between books (b) coins it holds (c) the shape of the paper (d) the kind of coins
32. 32.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
33. 33.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) where coins are placed (c) coins it holds
34. 34.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
35. 35.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
36. 36.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we keep it the same (c) we change it
37. 37.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) an electric tower (c) a hollow bird bone (d) an eggshell
38. 38.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) True (b) False
40. 40.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) triangles (c) tubes

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