Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 720 · 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) a magnet (b) two books (c) sheets of paper (d) coins
2. 2.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
3. 3.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) the shape of the paper (c) the kind of paper (d) the kind of coins
4. 4.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) paper with folded edges (c) rolled paper tubes (d) a torn flat sheet
5. 5.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the star (c) the heart shape (d) the triangle
6. 6.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) more (c) fewer (d) the same number of
7. 7.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
8. 8.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
9. 9.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a magnet (c) a balloon (d) coins
10. 10.True or false: one flat sheet makes a strong bridge. (a) False (b) True
11. 11.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) the gap between books (c) coins it holds (d) the kind of coins
12. 12.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
13. 13.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) a battery cell (d) a ruler
14. 14.True or false: one flat sheet makes a weak bridge. (a) True (b) False
15. 15.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) tubes (c) triangles
16. 16.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a bamboo pole (c) a hollow bird bone (d) an old stone bridge
17. 17.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) fewer coins (c) only water (d) the same coins
18. 18.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
19. 19.🏗️ Where does a round pillar get its strength from? (a) tubes (b) triangles (c) arches and domes
20. 20.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a balloon (c) yeast (d) a ruler
21. 21.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we keep it the same (c) we measure it
22. 22.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a round pillar (c) a roof frame (d) a bamboo pole
23. 23.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) two books (d) a magnet
24. 24.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) an electric tower (c) a round pillar (d) a bridge truss
25. 25.🏗️ Where does a roof frame get its strength from? (a) tubes (b) arches and domes (c) triangles
26. 26.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a mirror (c) a balloon (d) sheets of paper
27. 27.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
28. 28.🏗️ Where does an eggshell get its strength from? (a) tubes (b) arches and domes (c) triangles
29. 29.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) a U-shaped channel (c) paper with folded edges (d) a zigzag-folded sheet
30. 30.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a flat tissue (c) one flat sheet (d) a wet flat sheet
31. 31.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) the kind of paper
32. 32.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it stiffer (c) folds make it wet (d) folds are magnetic
33. 33.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) arches and domes (c) tubes
34. 34.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) on a stool edge (c) high and wobbly (d) low and steady
35. 35.🔍 Which is the odd one out? (a) a flat tissue (b) a wet flat sheet (c) one flat sheet (d) a U-shaped channel
36. 36.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) an old stone bridge (c) a bamboo pole (d) an electric tower
37. 37.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
38. 38.🧺 Which of these is not needed for the paper bridge? (a) two books (b) yeast (c) sheets of paper (d) coins
39. 39.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we keep it the same (c) we measure it
40. 40.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) two books (d) turmeric powder

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