Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 671 · 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 ruler (b) a mirror (c) coins (d) sheets of paper
2. 2.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) a hollow bird bone (c) a round pillar (d) an old stone bridge
3. 3.⚖️ 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) where coins are placed (c) the kind of coins (d) the gap between books
4. 4.🌉 Which of these makes a strong bridge? (a) rolled paper tubes (b) a wet flat sheet (c) a torn flat sheet (d) a flat tissue
5. 5.🛟 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
6. 6.🔍 Which is the odd one out? (a) a torn flat sheet (b) one flat sheet (c) a U-shaped channel (d) a flat tissue
7. 7.True or false: a flat tissue makes a weak bridge. (a) False (b) True
8. 8.True or false: a zigzag-folded sheet makes a strong bridge. (a) True (b) False
9. 9.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
10. 10.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a magnet (c) coins (d) a mirror
11. 11.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) coins (d) yeast
12. 12.True or false: yeast is not needed for the paper bridge. (a) True (b) False
13. 13.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds add glue (c) folds make it wet (d) folds are magnetic
14. 14.🧺 Which of these is not needed for the paper bridge? (a) a battery cell (b) two books (c) sheets of paper (d) a ruler
15. 15.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) paper with folded edges (d) a wet flat sheet
16. 16.True or false: a round pillar gets its strength from a tube shape. (a) True (b) False
17. 17.⚖️ 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
18. 18.🧺 Which of these is needed for the paper bridge? (a) two books (b) a mirror (c) a balloon (d) turmeric powder
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) coins (d) a magnet
20. 20.⚖️ 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
21. 21.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we keep it the same (b) we change it (c) we measure it
22. 22.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) more (d) the same number of
23. 23.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a zigzag-folded sheet (d) a torn flat sheet
24. 24.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
25. 25.🔍 Which is the odd one out? (a) one flat sheet (b) a zigzag-folded sheet (c) a U-shaped channel (d) rolled paper tubes
26. 26.True or false: an old stone bridge gets its strength from arches or domes. (a) False (b) True
27. 27.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it turns to card (c) it floats up (d) it gets stronger
28. 28.True or false: a flat tissue makes a strong bridge. (a) False (b) True
29. 29.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) False (b) True
30. 30.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
31. 31.⚖️ 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
32. 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) sheets of paper (c) a ruler (d) coins
33. 33.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
34. 34.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) an old stone bridge (c) a roof frame (d) a temple dome
35. 35.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
36. 36.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) True (b) False
37. 37.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we keep it the same (c) we change it
38. 38.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) arches and domes (c) triangles
39. 39.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) turmeric powder (d) a ruler
40. 40.⚖️ 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 measure it (c) we change it

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