Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 104 · 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 makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a torn flat sheet (d) rolled paper tubes
2. 2.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) where coins are placed (c) the shape of the paper (d) the kind of coins
3. 3.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
4. 4.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) on a stool edge (c) low and steady (d) high and wobbly
5. 5.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we keep it the same (b) we change it (c) we measure it
6. 6.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we keep it the same (c) we measure it
7. 7.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) a balloon (d) coins
8. 8.🔍 Which is the odd one out? (a) a U-shaped channel (b) a wet flat sheet (c) a zigzag-folded sheet (d) paper with folded edges
9. 9.True or false: a bamboo pole gets its strength from arches or domes. (a) False (b) True
10. 10.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) tubes (c) arches and domes
11. 11.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) False (b) True
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) two books (d) a battery cell
13. 13.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
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 a tube shape? (a) a bridge truss (b) an old stone bridge (c) an eggshell (d) a hollow bird bone
16. 16.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
18. 18.True or false: paper with folded edges makes a strong bridge. (a) True (b) False
19. 19.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) a battery cell (d) sheets of paper
20. 20.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) tubes (c) triangles
21. 21.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
22. 22.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
23. 23.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
24. 24.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
25. 25.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) fewer (d) more
26. 26.🏗️ Where does an old stone bridge get its strength from? (a) arches and domes (b) triangles (c) tubes
27. 27.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
28. 28.True or false: a bamboo pole gets its strength from triangles. (a) False (b) True
29. 29.True or false: a balloon is needed for the paper bridge. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) a torn flat sheet (b) a zigzag-folded sheet (c) rolled paper tubes (d) paper with folded edges
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) True (b) False
32. 32.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds add glue (c) folds make it stiffer (d) folds make it wet
33. 33.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a bamboo pole (c) a bridge truss (d) a temple dome
34. 34.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a zigzag-folded sheet (c) a flat tissue (d) a wet flat sheet
35. 35.True or false: coins is needed for the paper bridge. (a) True (b) False
36. 36.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) rolled paper tubes (c) a zigzag-folded sheet (d) one flat sheet
37. 37.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
38. 38.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a ruler (c) a magnet (d) a mirror
39. 39.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) an old stone bridge (c) an eggshell (d) a round pillar
40. 40.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it sags and falls (c) it turns to card (d) it gets stronger

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