Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 919 · 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 zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
2. 2.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a ruler (d) a mirror
3. 3.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it gets stronger (c) it floats up (d) it sags and falls
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) coins (d) a battery cell
5. 5.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is magnetic (c) it is very hot (d) it is made of steel
6. 6.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
7. 7.True or false: yeast is not needed for the paper bridge. (a) True (b) False
8. 8.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
9. 9.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a zigzag-folded sheet (c) one flat sheet (d) a wet flat sheet
10. 10.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
11. 11.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
12. 12.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) an old stone bridge (c) an eggshell (d) a hollow bird bone
13. 13.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) lick your fingers (d) skip washing
14. 14.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) more coins (d) fewer coins
15. 15.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) a ruler (d) yeast
16. 16.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the heart shape (c) the square (d) the triangle
17. 17.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
18. 18.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
19. 19.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) an eggshell (c) a round pillar (d) a bridge truss
20. 20.🏗️ Where does an electric tower get its strength from? (a) tubes (b) triangles (c) arches and domes
21. 21.🔍 Which is the odd one out? (a) paper with folded edges (b) a flat tissue (c) a torn flat sheet (d) one flat sheet
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a ruler (d) a magnet
23. 23.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) tubes (c) triangles
24. 24.🏗️ Where does a roof frame get its strength from? (a) tubes (b) arches and domes (c) triangles
25. 25.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) paper with folded edges (c) a U-shaped channel (d) a flat tissue
27. 27.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we keep it the same (c) we change it
28. 28.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds add glue (c) folds make it stiffer (d) folds are magnetic
29. 29.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a magnet (c) coins (d) sheets of paper
30. 30.🏗️ Which of these gets its strength from a tube shape? (a) a hollow bird bone (b) a roof frame (c) a temple dome (d) an old stone bridge
31. 31.True or false: a ruler is needed for the paper bridge. (a) True (b) False
32. 32.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a round pillar (c) an electric tower (d) a temple dome
33. 33.🌉 Which of these makes a weak bridge? (a) a torn flat sheet (b) paper with folded edges (c) a U-shaped channel (d) rolled paper tubes
34. 34.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
35. 35.🧺 Which of these is not needed for the paper bridge? (a) a battery cell (b) coins (c) a ruler (d) two books
36. 36.True or false: two books is needed for the paper bridge. (a) False (b) True
37. 37.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
38. 38.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) a roof frame (c) a bamboo pole (d) an eggshell
39. 39.⚖️ 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 change it (c) we measure it
40. 40.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a wet flat sheet (c) a U-shaped channel (d) one flat sheet

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