Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 803 · 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 is the odd one out? (a) rolled paper tubes (b) paper with folded edges (c) a wet flat sheet (d) a U-shaped channel
2. 2.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
3. 3.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
4. 4.🔍 Which is the odd one out? (a) a wet flat sheet (b) a torn flat sheet (c) a flat tissue (d) rolled paper tubes
5. 5.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) an old stone bridge (c) an eggshell (d) an electric tower
6. 6.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
7. 7.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
8. 8.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a round pillar (c) a temple dome (d) a roof frame
9. 9.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a zigzag-folded sheet (c) one flat sheet (d) rolled paper tubes
10. 10.True or false: yeast is not needed for the paper bridge. (a) False (b) True
11. 11.⚖️ 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 measure it (c) we change it
12. 12.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the square (c) the heart shape (d) the triangle
13. 13.⚖️ 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
14. 14.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) where coins are placed (c) coins it holds (d) the kind of coins
15. 15.⚖️ 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
16. 16.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) a wet flat sheet (d) a U-shaped channel
17. 17.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a U-shaped channel (c) a zigzag-folded sheet (d) a wet flat sheet
18. 18.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) a mirror (d) a ruler
19. 19.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it floats up (c) it sags and falls (d) it gets stronger
20. 20.⚖️ 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
21. 21.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) turmeric powder (c) yeast (d) coins
22. 22.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it stiffer (c) folds make it wet (d) folds are magnetic
23. 23.True or false: a round pillar gets its strength from triangles. (a) False (b) True
24. 24.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) a balloon (d) coins
25. 25.⚖️ 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
26. 26.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) an eggshell (c) a bridge truss (d) an electric tower
27. 27.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) coins it holds (c) the kind of paper (d) the shape of the paper
28. 28.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we change it (c) we measure it
29. 29.True or false: a battery cell is not needed for the paper bridge. (a) True (b) False
30. 30.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
31. 31.True or false: a wet flat sheet makes a weak bridge. (a) True (b) False
32. 32.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
33. 33.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) the same number of (c) more (d) zero
34. 34.🔍 Which is the odd one out? (a) paper with folded edges (b) a flat tissue (c) a zigzag-folded sheet (d) rolled paper tubes
35. 35.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) high and wobbly (c) on top of a pet (d) on a stool edge
36. 36.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a mirror (c) a ruler (d) sheets of paper
37. 37.True or false: a mirror is not needed for the paper bridge. (a) True (b) False
38. 38.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) a hollow bird bone (c) an old stone bridge (d) a temple dome
39. 39.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a battery cell (d) a ruler

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