Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 848 · 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) less (b) more (c) upward (d) not at all
2. 2.True or false: a roof frame gets its strength from arches or domes. (a) True (b) False
3. 3.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) more (c) zero (d) the same number of
4. 4.⚖️ 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
5. 5.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
6. 6.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) skip washing (c) rub your eyes (d) wash your hands
7. 7.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) an electric tower (c) a bridge truss (d) a hollow bird bone
8. 8.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
9. 9.⚖️ 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
10. 10.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
11. 11.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we keep it the same (c) we change it
12. 12.True or false: a ruler is needed for the paper bridge. (a) False (b) True
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) True (b) False
15. 15.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a magnet (c) two books (d) coins
16. 16.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) paper with folded edges (c) a U-shaped channel (d) a wet flat sheet
17. 17.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) low and steady (d) high and wobbly
18. 18.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the heart shape (c) the triangle (d) the square
19. 19.True or false: a round pillar gets its strength from a tube shape. (a) False (b) True
20. 20.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) False (b) True
21. 21.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) triangles (c) tubes
22. 22.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we keep it the same (c) we measure it
23. 23.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
24. 24.🔍 Which is the odd one out? (a) a wet flat sheet (b) a flat tissue (c) a torn flat sheet (d) paper with folded edges
25. 25.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) the shape of the paper (c) where coins are placed (d) the gap between books
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) turmeric powder (c) sheets of paper (d) two books
27. 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) sheets of paper (c) a ruler (d) coins
28. 28.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) the gap between books (c) the kind of paper (d) coins it holds
29. 29.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it floats up (c) it gets stronger (d) it turns to card
30. 30.🧺 Which of these is not needed for the paper bridge? (a) coins (b) yeast (c) two books (d) sheets of paper
31. 31.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) a U-shaped channel (c) a zigzag-folded sheet (d) rolled paper tubes
32. 32.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) True (b) False
33. 33.True or false: one flat sheet makes a strong bridge. (a) False (b) True
34. 34.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) triangles (c) tubes
35. 35.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) a temple dome (c) a bridge truss (d) a round pillar
36. 36.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) an eggshell (c) a roof frame (d) a bamboo pole
37. 37.🏗️ Where does an eggshell get its strength from? (a) tubes (b) triangles (c) arches and domes
38. 38.True or false: a hollow bird bone gets its strength from triangles. (a) False (b) True
39. 39.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) triangles (c) tubes
40. 40.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) triangles (c) arches and domes

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