Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 353 · 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.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a magnet (c) sheets of paper (d) a ruler
2. 2.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) only water (d) fewer coins
3. 3.⚖️ 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
4. 4.🏗️ Which of these gets its strength from a tube shape? (a) a hollow bird bone (b) an electric tower (c) a bridge truss (d) an eggshell
5. 5.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) more (c) the same number of (d) zero
6. 6.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
7. 7.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) turmeric powder (d) coins
8. 8.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the gap between books (b) the shape of the paper (c) coins it holds
9. 9.🛟 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
10. 10.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
11. 11.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) paper with folded edges (c) a flat tissue (d) rolled paper tubes
12. 12.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
13. 13.🏗️ Where does an old stone bridge get its strength from? (a) arches and domes (b) tubes (c) triangles
14. 14.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the triangle (c) the heart shape (d) the star
15. 15.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) paper with folded edges (c) a flat tissue (d) rolled paper tubes
16. 16.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True
17. 17.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) turmeric powder (c) a ruler (d) a mirror
18. 18.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a round pillar (c) a temple dome (d) a roof frame
19. 19.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we change it (c) we keep it the same
20. 20.True or false: a hollow bird bone gets its strength from arches or domes. (a) False (b) True
21. 21.True or false: rolled paper tubes makes a strong bridge. (a) True (b) False
22. 22.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
23. 23.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) True (b) False
24. 24.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) paper with folded edges (c) one flat sheet (d) a torn flat sheet
25. 25.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
26. 26.🧺 Which of these is not needed for the paper bridge? (a) yeast (b) two books (c) sheets of paper (d) coins
27. 27.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
28. 28.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) on top of a pet (d) low and steady
29. 29.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a mirror (c) sheets of paper (d) two books
30. 30.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
31. 31.🔮 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
32. 32.True or false: a bamboo pole gets its strength from arches or domes. (a) True (b) False
33. 33.True or false: an electric tower gets its strength from a tube shape. (a) False (b) True
34. 34.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) an electric tower (c) a temple dome (d) a hollow bird bone
35. 35.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it turns to card (c) it floats up (d) it sags and falls
36. 36.🌉 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 wet (d) folds make it stiffer
37. 37.🧺 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
38. 38.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a balloon (c) sheets of paper (d) two books
39. 39.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) where coins are placed (b) the shape of the paper (c) coins it holds
40. 40.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) a bamboo pole (c) an eggshell (d) an electric tower

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