Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 587 · 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.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a magnet (c) coins (d) a ruler
2. 2.True or false: a bridge truss gets its strength from a tube shape. (a) False (b) True
3. 3.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
4. 4.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) where coins are placed (c) the shape of the paper (d) the kind of coins
5. 5.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it stiffer (c) folds add glue (d) folds make it wet
6. 6.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) arches and domes (c) triangles
7. 7.🔺 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
8. 8.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
9. 9.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a round pillar (c) a bamboo pole (d) an eggshell
10. 10.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
11. 11.🏗️ Where does an electric tower get its strength from? (a) triangles (b) arches and domes (c) tubes
12. 12.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) only water (d) fewer coins
13. 13.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) more (c) zero (d) the same number of
14. 14.🔍 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 sags and falls (d) it floats up
15. 15.🔍 Which is the odd one out? (a) a wet flat sheet (b) a zigzag-folded sheet (c) a torn flat sheet (d) one flat sheet
16. 16.🏗️ Which of these gets its strength from a tube shape? (a) a bamboo pole (b) a temple dome (c) an electric tower (d) a roof frame
17. 17.True or false: a flat tissue makes a weak bridge. (a) True (b) False
18. 18.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
19. 19.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
20. 20.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
21. 21.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
22. 22.🧺 Which of these is not needed for the paper bridge? (a) yeast (b) sheets of paper (c) coins (d) two books
23. 23.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) a ruler (c) two books (d) coins
24. 24.🌉 Which of these makes a weak bridge? (a) a torn flat sheet (b) a zigzag-folded sheet (c) paper with folded edges (d) rolled paper tubes
25. 25.🔍 Which is the odd one out? (a) a wet flat sheet (b) a flat tissue (c) a U-shaped channel (d) a torn flat sheet
26. 26.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) the kind of coins (c) where coins are placed (d) the shape of the paper
27. 27.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) rolled paper tubes (c) paper with folded edges (d) a zigzag-folded sheet
28. 28.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a zigzag-folded sheet (c) a flat tissue (d) a U-shaped channel
29. 29.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
30. 30.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) a bridge truss (c) a temple dome (d) a round pillar
31. 31.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
32. 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) coins (d) a mirror
33. 33.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) low and steady (c) on top of a pet (d) on a stool edge
34. 34.⚖️ 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
35. 35.🛟 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
36. 36.🔍 Which is the odd one out? (a) a wet flat sheet (b) a torn flat sheet (c) one flat sheet (d) paper with folded edges
37. 37.True or false: a hollow bird bone gets its strength from arches or domes. (a) False (b) True
38. 38.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
39. 39.True or false: a bamboo pole gets its strength from triangles. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) rolled paper tubes (b) paper with folded edges (c) one flat sheet (d) a U-shaped channel

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