Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 242 · 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.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the shape of the paper (b) the gap between books (c) the kind of paper (d) the kind of coins
2. 2.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) True (b) False
3. 3.True or false: a battery cell is not needed for the paper bridge. (a) True (b) False
4. 4.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
5. 5.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) sheets of paper (d) turmeric powder
7. 7.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) only water (c) the same coins (d) more coins
8. 8.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
9. 9.True or false: a hollow bird bone gets its strength from a tube shape. (a) False (b) True
10. 10.⚖️ 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
11. 11.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a hollow bird bone (c) a roof frame (d) an old stone bridge
12. 12.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
13. 13.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) False (b) True
14. 14.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
15. 15.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) triangles (c) tubes
16. 16.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we change it (c) we keep it the same
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is the one thing we change. (a) False (b) True
18. 18.True or false: a flat tissue makes a weak bridge. (a) True (b) False
19. 19.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) on top of a pet (d) low and steady
20. 20.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) where coins are placed (c) the shape of the paper
21. 21.True or false: an electric tower gets its strength from a tube shape. (a) True (b) False
22. 22.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) two books (c) a battery cell (d) coins
23. 23.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
24. 24.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) coins (d) yeast
25. 25.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) arches and domes (c) triangles
26. 26.True or false: one flat sheet makes a strong bridge. (a) True (b) False
27. 27.🧺 Which of these is needed for the paper bridge? (a) coins (b) a mirror (c) yeast (d) a magnet
28. 28.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) tubes (c) triangles
29. 29.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
30. 30.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) False (b) True
31. 31.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) triangles (c) arches and domes
32. 32.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) False (b) True
33. 33.True or false: a round pillar gets its strength from triangles. (a) False (b) True
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
35. 35.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) rolled paper tubes (c) a torn flat sheet (d) a zigzag-folded sheet
36. 36.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a mirror (c) sheets of paper (d) a ruler
37. 37.🔍 Which is the odd one out? (a) a flat tissue (b) a torn flat sheet (c) a U-shaped channel (d) one flat sheet
38. 38.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) a hollow bird bone (c) an eggshell (d) an electric tower
39. 39.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds make it stiffer (c) folds add glue (d) folds are magnetic
40. 40.⚖️ 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

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