Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 714 · 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) coins (b) two books (c) a ruler (d) a magnet
2. 2.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) paper with folded edges (b) rolled paper tubes (c) one flat sheet (d) a U-shaped channel
4. 4.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) the kind of paper (c) the shape of the paper (d) where coins are placed
5. 5.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) more (c) not at all (d) upward
6. 6.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
7. 7.🏗️ Where does a roof frame get its strength from? (a) tubes (b) arches and domes (c) triangles
8. 8.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
9. 9.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) arches and domes (c) tubes
10. 10.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) an eggshell (c) an old stone bridge (d) a hollow bird bone
11. 11.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
12. 12.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) an eggshell (c) an electric tower (d) a bamboo pole
13. 13.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) arches and domes (c) tubes
14. 14.True or false: one flat sheet makes a strong bridge. (a) True (b) False
15. 15.🏗️ Where does an eggshell get its strength from? (a) tubes (b) arches and domes (c) triangles
16. 16.True or false: one flat sheet makes a weak bridge. (a) True (b) False
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) True (b) False
18. 18.🌉 Which of these makes a strong bridge? (a) rolled paper tubes (b) a flat tissue (c) one flat sheet (d) a wet flat sheet
19. 19.⚖️ 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
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) sheets of paper (c) two books (d) coins
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) coins (c) two books (d) a ruler
22. 22.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) a bridge truss (c) an eggshell (d) a round pillar
23. 23.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) the shape of the paper (c) coins it holds (d) the kind of coins
24. 24.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) rolled paper tubes (c) a zigzag-folded sheet (d) a wet flat sheet
25. 25.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False
26. 26.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
27. 27.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we measure it (b) we change it (c) we keep it the same
28. 28.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
29. 29.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) a ruler (d) yeast
30. 30.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it turns to card (c) it sags and falls (d) it floats up
31. 31.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we change it (c) we keep it the same
32. 32.True or false: a round pillar gets its strength from arches or domes. (a) False (b) True
33. 33.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we change it (c) we keep it the same
34. 34.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) wash your hands (c) lick your fingers (d) skip washing
35. 35.🏗️ Which of these gets its strength from triangles? (a) an electric tower (b) a round pillar (c) a temple dome (d) a bamboo pole
36. 36.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds make it wet (c) folds add glue (d) folds are magnetic
37. 37.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) False (b) True
38. 38.🧺 Which of these is not needed for the paper bridge? (a) a balloon (b) two books (c) coins (d) sheets of paper
39. 39.True or false: two books is needed for the paper bridge. (a) True (b) False
40. 40.⚖️ 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

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