Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 297 · 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.True or false: two books is needed for the paper bridge. (a) False (b) True
2. 2.🧺 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 mirror
3. 3.🏗️ Where does a round pillar get its strength from? (a) triangles (b) tubes (c) arches and domes
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) sheets of paper (d) turmeric powder
5. 5.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) yeast (c) two books (d) coins
6. 6.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
7. 7.⚖️ 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
8. 8.True or false: a round pillar gets its strength from a tube shape. (a) True (b) False
9. 9.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) the gap between books (c) where coins are placed (d) the shape of the paper
10. 10.🏗️ Where does a temple dome get its strength from? (a) triangles (b) tubes (c) arches and domes
11. 11.🔍 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
12. 12.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) zero (d) the same number of
13. 13.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
14. 14.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) a balloon (d) two books
15. 15.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds are magnetic (c) folds make it wet (d) folds add glue
16. 16.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we keep it the same (c) we change it
17. 17.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
18. 18.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) triangles (c) arches and domes
19. 19.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a bridge truss (c) a temple dome (d) a hollow bird bone
20. 20.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we keep it the same (c) we measure it
21. 21.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) only water (c) the same coins (d) fewer coins
22. 22.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a balloon (c) a magnet (d) a ruler
23. 23.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
24. 24.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we keep it the same (b) we change it (c) we measure it
25. 25.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) the gap between books (c) the kind of paper (d) coins it holds
26. 26.True or false: a roof frame gets its strength from a tube shape. (a) True (b) False
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (a) True (b) False
28. 28.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) triangles (c) tubes
29. 29.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) arches and domes (c) triangles
30. 30.🔍 Which is the odd one out? (a) paper with folded edges (b) a U-shaped channel (c) a zigzag-folded sheet (d) a torn flat sheet
31. 31.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) a roof frame (c) a round pillar (d) an old stone bridge
32. 32.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) triangles (c) tubes
33. 33.True or false: a battery cell is needed for the paper bridge. (a) False (b) True
34. 34.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on a stool edge (c) high and wobbly (d) on top of a pet
35. 35.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
36. 36.True or false: one flat sheet makes a weak bridge. (a) False (b) True
37. 37.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) more (c) not at all (d) less
38. 38.🏗️ Which of these gets its strength from arches or domes? (a) an eggshell (b) a round pillar (c) a roof frame (d) an electric tower
39. 39.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
40. 40.🔍 Which is the odd one out? (a) a torn flat sheet (b) paper with folded edges (c) a wet flat sheet (d) one flat sheet

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