Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 165 · 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.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds are magnetic (c) folds make it stiffer (d) folds make it wet
2. 2.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a balloon (c) sheets of paper (d) a ruler
3. 3.⚖️ 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
4. 4.True or false: a roof frame gets its strength from arches or domes. (a) True (b) False
5. 5.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a temple dome (c) a bridge truss (d) a hollow bird bone
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) a mirror (d) coins
7. 7.🔍 Which is the odd one out? (a) paper with folded edges (b) one flat sheet (c) a wet flat sheet (d) a torn flat sheet
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) a ruler (c) coins (d) two books
9. 9.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) sheets of paper (d) turmeric powder
10. 10.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) the kind of coins (c) the shape of the paper (d) the kind of paper
11. 11.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
12. 12.🛟 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
13. 13.True or false: one flat sheet makes a weak bridge. (a) False (b) True
14. 14.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it gets stronger (c) it turns to card (d) it sags and falls
15. 15.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) skip washing (d) wash your hands
16. 16.True or false: a round pillar gets its strength from arches or domes. (a) True (b) False
17. 17.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a mirror (c) a magnet (d) a ruler
18. 18.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
19. 19.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
20. 20.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
21. 21.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) only water (c) fewer coins (d) more coins
22. 22.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) two books (d) a magnet
23. 23.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the gap between books (c) the kind of coins (d) where coins are placed
24. 24.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
25. 25.🌉 Which of these makes a strong bridge? (a) a zigzag-folded sheet (b) one flat sheet (c) a flat tissue (d) a wet flat sheet
26. 26.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we keep it the same (b) we change it (c) we measure it
27. 27.True or false: a flat tissue makes a weak bridge. (a) False (b) True
28. 28.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the gap between books (c) coins it holds
29. 29.🏗️ Where does an electric tower get its strength from? (a) triangles (b) tubes (c) arches and domes
30. 30.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
31. 31.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
32. 32.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a flat tissue (c) one flat sheet (d) a torn flat sheet
33. 33.⚖️ 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
34. 34.True or false: yeast is needed for the paper bridge. (a) False (b) True
35. 35.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) tubes (c) arches and domes
36. 36.⚖️ 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
37. 37.🏗️ Where does a round pillar get its strength from? (a) triangles (b) arches and domes (c) tubes
38. 38.True or false: a mirror is needed for the paper bridge. (a) False (b) True
39. 39.🏗️ Which of these gets its strength from arches or domes? (a) an eggshell (b) a bamboo pole (c) a bridge truss (d) a round pillar
40. 40.🔍 Which is the odd one out? (a) a U-shaped channel (b) a wet flat sheet (c) rolled paper tubes (d) a zigzag-folded sheet

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