Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 119 · 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: a U-shaped channel makes a weak bridge. (a) False (b) True
2. 2.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) not at all (c) less (d) more
3. 3.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
4. 4.⚖️ 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
5. 5.⚖️ 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
6. 6.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) arches and domes (c) tubes
7. 7.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a bamboo pole (c) a roof frame (d) an eggshell
8. 8.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) paper with folded edges (d) a torn flat sheet
9. 9.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a torn flat sheet (c) a zigzag-folded sheet (d) a wet flat sheet
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) a ruler (c) sheets of paper (d) two books
11. 11.True or false: yeast is not needed for the paper bridge. (a) True (b) False
12. 12.True or false: an electric tower gets its strength from a tube shape. (a) False (b) True
13. 13.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) fewer coins (c) only water (d) the same coins
14. 14.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
15. 15.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a bridge truss (c) a hollow bird bone (d) a round pillar
16. 16.🌉 Which of these makes a weak bridge? (a) a torn flat sheet (b) a zigzag-folded sheet (c) rolled paper tubes (d) a U-shaped channel
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
18. 18.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a roof frame (c) a hollow bird bone (d) an eggshell
19. 19.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a zigzag-folded sheet (c) a wet flat sheet (d) paper with folded edges
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) a ruler (c) two books (d) coins
21. 21.True or false: a ruler is not needed for the paper bridge. (a) True (b) False
22. 22.True or false: coins is not needed for the paper bridge. (a) True (b) False
23. 23.True or false: a roof frame gets its strength from triangles. (a) False (b) True
24. 24.🏗️ Where does an eggshell get its strength from? (a) triangles (b) arches and domes (c) tubes
25. 25.⚖️ 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
26. 26.True or false: a magnet is needed for the paper bridge. (a) False (b) True
27. 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) turmeric powder (c) two books (d) coins
28. 28.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
29. 29.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) a battery cell (c) yeast (d) a balloon
30. 30.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we change it (c) we keep it the same
31. 31.🔍 Which is the odd one out? (a) rolled paper tubes (b) a torn flat sheet (c) a U-shaped channel (d) a zigzag-folded sheet
32. 32.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
33. 33.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
34. 34.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
35. 35.True or false: a round pillar gets its strength from a tube shape. (a) False (b) True
36. 36.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
37. 37.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) a mirror (d) sheets of paper
38. 38.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) where coins are placed (b) the shape of the paper (c) coins it holds
39. 39.⚖️ 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 kind of paper (d) the shape of the paper
40. 40.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge

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