Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 812 · 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.🌉 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
2. 2.True or false: an old stone bridge gets its strength from triangles. (a) False (b) True
3. 3.True or false: a battery cell is needed for the paper bridge. (a) False (b) True
4. 4.True or false: a roof frame gets its strength from triangles. (a) False (b) True
5. 5.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) the same number of (c) zero (d) more
6. 6.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we keep it the same (c) we change it
7. 7.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) sheets of paper (c) coins (d) two books
8. 8.🏗️ Where does a roof frame get its strength from? (a) triangles (b) arches and domes (c) tubes
9. 9.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
10. 10.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
11. 11.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it gets stronger (c) it turns to card (d) it sags and falls
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) a ruler (c) sheets of paper (d) two books
13. 13.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
14. 14.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
15. 15.🏗️ Where does an electric tower get its strength from? (a) triangles (b) tubes (c) arches and domes
16. 16.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) rolled paper tubes (c) a U-shaped channel (d) a wet flat sheet
17. 17.🔍 Which is the odd one out? (a) a wet flat sheet (b) rolled paper tubes (c) a zigzag-folded sheet (d) paper with folded edges
18. 18.🔍 Which is the odd one out? (a) one flat sheet (b) a flat tissue (c) a torn flat sheet (d) a zigzag-folded sheet
19. 19.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a torn flat sheet (d) rolled paper tubes
20. 20.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
21. 21.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) one flat sheet (c) a wet flat sheet (d) paper with folded edges
22. 22.🏗️ Which of these gets its strength from arches or domes? (a) an eggshell (b) a round pillar (c) a bamboo pole (d) an electric tower
23. 23.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) a U-shaped channel (c) paper with folded edges (d) a zigzag-folded sheet
24. 24.True or false: a hollow bird bone gets its strength from arches or domes. (a) True (b) False
25. 25.True or false: coins is not needed for the paper bridge. (a) False (b) True
26. 26.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a torn flat sheet (c) one flat sheet (d) a U-shaped channel
27. 27.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
28. 28.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a ruler (c) sheets of paper (d) a mirror
29. 29.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) tubes (c) arches and domes
30. 30.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we keep it the same (c) we measure it
31. 31.True or false: coins is needed for the paper bridge. (a) True (b) False
32. 32.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
33. 33.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
34. 34.🔺 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 heart shape (d) the triangle
35. 35.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a bridge truss (c) a bamboo pole (d) an old stone bridge
36. 36.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) skip washing (d) wash your hands
37. 37.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) a torn flat sheet (d) rolled paper tubes
38. 38.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) a magnet (c) a mirror (d) a battery cell
39. 39.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) an electric tower (c) a bridge truss (d) an old stone bridge
40. 40.⚖️ 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

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