Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 215 · 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.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it floats up (c) it turns to card (d) it sags and falls
2. 2.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a round pillar (c) an old stone bridge (d) an electric tower
3. 3.🔍 Which is the odd one out? (a) a wet flat sheet (b) a flat tissue (c) one flat sheet (d) rolled paper tubes
4. 4.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) the kind of coins (c) the shape of the paper (d) the gap between books
5. 5.True or false: an eggshell gets its strength from arches or domes. (a) False (b) True
6. 6.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
7. 7.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we keep it the same (b) we change it (c) we measure it
8. 8.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
9. 9.True or false: an eggshell gets its strength from triangles. (a) False (b) True
10. 10.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) one flat sheet (c) a wet flat sheet (d) a zigzag-folded sheet
11. 11.🔍 Which is the odd one out? (a) a flat tissue (b) paper with folded edges (c) a torn flat sheet (d) one flat sheet
12. 12.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a ruler (c) a magnet (d) yeast
13. 13.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) the same number of (c) fewer (d) zero
14. 14.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a hollow bird bone (c) an old stone bridge (d) a bridge truss
15. 15.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) sheets of paper (c) two books (d) a ruler
16. 16.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a magnet (c) sheets of paper (d) two books
17. 17.True or false: a temple dome gets its strength from arches or domes. (a) False (b) True
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a balloon (c) coins (d) sheets of paper
19. 19.🔍 Which is the odd one out? (a) a U-shaped channel (b) paper with folded edges (c) a zigzag-folded sheet (d) a wet flat sheet
20. 20.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) triangles (c) tubes
21. 21.🛟 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
22. 22.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
23. 23.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we measure it (c) we change it
24. 24.🔍 Which is the odd one out? (a) a U-shaped channel (b) a flat tissue (c) rolled paper tubes (d) a zigzag-folded sheet
25. 25.🔍 Which is the odd one out? (a) paper with folded edges (b) a zigzag-folded sheet (c) one flat sheet (d) a U-shaped channel
26. 26.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) a bridge truss (c) an eggshell (d) a bamboo pole
27. 27.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
28. 28.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) more coins (d) fewer coins
29. 29.True or false: a round pillar gets its strength from arches or domes. (a) True (b) False
30. 30.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) True (b) False
31. 31.🔺 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
32. 32.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) False (b) True
33. 33.⚖️ 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
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) turmeric powder (c) a ruler (d) two books
35. 35.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) rub your eyes (c) wash your hands (d) lick your fingers
36. 36.⚖️ 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
37. 37.True or false: an eggshell gets its strength from a tube shape. (a) True (b) False
38. 38.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) the kind of coins
39. 39.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
40. 40.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) more (c) not at all (d) less

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