Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 922 · 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.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) rub your eyes (c) lick your fingers (d) wash your hands
2. 2.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a battery cell (c) a balloon (d) a ruler
3. 3.🌉 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
4. 4.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) less (c) not at all (d) upward
5. 5.🔍 Which is the odd one out? (a) rolled paper tubes (b) a wet flat sheet (c) paper with folded edges (d) a zigzag-folded sheet
6. 6.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) arches and domes (c) triangles
7. 7.True or false: a magnet is needed for the paper bridge. (a) False (b) True
8. 8.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we keep it the same (c) we change it
9. 9.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) a ruler (c) sheets of paper (d) two books
10. 10.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) turmeric powder (c) yeast (d) a magnet
11. 11.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
12. 12.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) rolled paper tubes (c) a U-shaped channel (d) a zigzag-folded sheet
13. 13.🧺 Which of these is not needed for the paper bridge? (a) a balloon (b) two books (c) a ruler (d) sheets of paper
14. 14.True or false: turmeric powder is not needed for the paper bridge. (a) True (b) False
15. 15.🏗️ Where does a roof frame get its strength from? (a) tubes (b) arches and domes (c) triangles
16. 16.🏗️ Where does a temple dome get its strength from? (a) tubes (b) triangles (c) arches and domes
17. 17.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
18. 18.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) where coins are placed (c) the kind of paper (d) coins it holds
19. 19.⚖️ 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
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a battery cell (d) sheets of paper
21. 21.True or false: a hollow bird bone gets its strength from triangles. (a) False (b) True
22. 22.🏗️ Where does an eggshell get its strength from? (a) tubes (b) triangles (c) arches and domes
23. 23.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
24. 24.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a bamboo pole (c) a temple dome (d) an electric tower
25. 25.True or false: rolled paper tubes makes a strong bridge. (a) True (b) False
26. 26.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) low and steady (d) on top of a pet
27. 27.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we keep it the same (c) we change it
28. 28.🏗️ Where does an electric tower get its strength from? (a) triangles (b) tubes (c) arches and domes
29. 29.⚖️ 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
30. 30.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
31. 31.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) paper with folded edges (c) a torn flat sheet (d) rolled paper tubes
33. 33.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a flat tissue (c) a zigzag-folded sheet (d) one flat sheet
34. 34.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) arches and domes (c) tubes
35. 35.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
36. 36.True or false: a ruler is not needed for the paper bridge. (a) True (b) False
37. 37.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) a ruler (c) two books (d) coins
39. 39.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) the kind of paper (c) the gap between books (d) the shape of the paper
40. 40.🔍 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

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