Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 490 · 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.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) more (c) less (d) upward
2. 2.True or false: a bamboo pole gets its strength from a tube shape. (a) True (b) False
3. 3.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a temple dome (c) a bridge truss (d) a bamboo pole
4. 4.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) triangles (c) tubes
5. 5.🔍 Which is the odd one out? (a) rolled paper tubes (b) a U-shaped channel (c) a flat tissue (d) a zigzag-folded sheet
6. 6.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
7. 7.True or false: a flat tissue makes a weak bridge. (a) False (b) True
8. 8.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
9. 9.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
10. 10.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
11. 11.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a flat tissue (c) a torn flat sheet (d) a U-shaped channel
12. 12.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) lick your fingers (c) rub your eyes (d) wash your hands
13. 13.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a balloon (c) a mirror (d) a ruler
14. 14.🏗️ Where does a temple dome get its strength from? (a) triangles (b) arches and domes (c) tubes
15. 15.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a balloon (c) a ruler (d) two books
16. 16.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) True (b) False
17. 17.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) where coins are placed (c) the shape of the paper (d) coins it holds
18. 18.True or false: one flat sheet makes a strong bridge. (a) True (b) False
19. 19.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a battery cell (c) coins (d) sheets of paper
20. 20.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the star (c) the triangle (d) the heart shape
21. 21.🛟 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
22. 22.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) fewer (c) zero (d) more
23. 23.🔍 Which is the odd one out? (a) a U-shaped channel (b) a torn flat sheet (c) rolled paper tubes (d) paper with folded edges
24. 24.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a temple dome (c) a round pillar (d) an old stone bridge
25. 25.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) coins (d) a balloon
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) coins (d) a mirror
27. 27.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
28. 28.🏗️ Which of these gets its strength from triangles? (a) an electric tower (b) an eggshell (c) an old stone bridge (d) a hollow bird bone
29. 29.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) yeast (d) two books
30. 30.🔍 Which is the odd one out? (a) a flat tissue (b) a wet flat sheet (c) a torn flat sheet (d) paper with folded edges
31. 31.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
32. 32.🔍 Which is the odd one out? (a) paper with folded edges (b) a U-shaped channel (c) a zigzag-folded sheet (d) a wet flat sheet
33. 33.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) yeast (c) sheets of paper (d) coins
34. 34.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
35. 35.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) sheets of paper (c) a mirror (d) a battery cell
36. 36.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
37. 37.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
38. 38.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we change it (c) we keep it the same
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) coins (c) a ruler (d) two books
40. 40.⚖️ 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 measure it (c) we change it

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