Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 471 · 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.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
2. 2.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) arches and domes (c) triangles
3. 3.True or false: a ruler is not needed for the paper bridge. (a) True (b) False
4. 4.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) turmeric powder (c) sheets of paper (d) a mirror
5. 5.True or false: coins is needed for the paper bridge. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) rolled paper tubes (b) a U-shaped channel (c) paper with folded edges (d) a wet flat sheet
7. 7.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) skip washing (d) lick your fingers
8. 8.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) an old stone bridge (c) an eggshell (d) an electric tower
9. 9.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) the same number of (d) zero
10. 10.True or false: an electric tower gets its strength from a tube shape. (a) False (b) True
11. 11.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
12. 12.🔍 Which is the odd one out? (a) paper with folded edges (b) a wet flat sheet (c) one flat sheet (d) a flat tissue
13. 13.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) turmeric powder (d) two books
14. 14.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
15. 15.🛟 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
16. 16.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the triangle (c) the heart shape (d) the square
17. 17.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a balloon (d) a ruler
18. 18.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
19. 19.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) a balloon (d) a ruler
20. 20.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) only water (c) fewer coins (d) more coins
21. 21.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) coins it holds (c) where coins are placed (d) the kind of paper
22. 22.True or false: yeast is needed for the paper bridge. (a) False (b) True
23. 23.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
24. 24.⚖️ 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 kind of coins (c) the gap between books (d) the shape of the paper
25. 25.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
26. 26.🏗️ Where does a round pillar get its strength from? (a) tubes (b) triangles (c) arches and domes
27. 27.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
28. 28.🔍 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
29. 29.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a magnet (c) coins (d) two books
30. 30.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
31. 31.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a ruler (c) turmeric powder (d) a battery cell
32. 32.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) the gap between books
33. 33.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
34. 34.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds are magnetic (c) folds add glue (d) folds make it wet
35. 35.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
36. 36.🏗️ Which of these gets its strength from a tube shape? (a) a round pillar (b) a roof frame (c) a temple dome (d) a bridge truss
37. 37.True or false: one flat sheet makes a weak bridge. (a) False (b) True
38. 38.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) arches and domes (c) tubes
39. 39.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) yeast (c) two books (d) sheets of paper
40. 40.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) paper with folded edges (c) rolled paper tubes (d) one flat sheet

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