Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 879 · 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) a magnet (b) coins (c) two books (d) a ruler
2. 2.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) a bamboo pole (c) an eggshell (d) a round pillar
3. 3.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds make it stiffer (c) folds add glue (d) folds are magnetic
4. 4.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
5. 5.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) triangles (c) arches and domes
6. 6.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the star (c) the square (d) the triangle
7. 7.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) two books (d) a mirror
8. 8.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we keep it the same (c) we measure it
9. 9.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) a torn flat sheet (d) a U-shaped channel
10. 10.True or false: a temple dome gets its strength from arches or domes. (a) False (b) True
11. 11.🏗️ Where does an old stone bridge get its strength from? (a) arches and domes (b) tubes (c) triangles
12. 12.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) the same number of (d) more
13. 13.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
14. 14.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
15. 15.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a balloon (c) yeast (d) sheets of paper
16. 16.🔍 Which is the odd one out? (a) paper with folded edges (b) a zigzag-folded sheet (c) rolled paper tubes (d) a wet flat sheet
17. 17.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we measure it (c) we change it
18. 18.🛟 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
19. 19.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
20. 20.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we keep it the same (c) we measure it
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) a ruler (d) turmeric powder
22. 22.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
23. 23.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a flat tissue (c) one flat sheet (d) a torn flat sheet
24. 24.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) a battery cell (d) a ruler
25. 25.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
26. 26.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
27. 27.⚖️ 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 kind of paper
28. 28.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) rolled paper tubes (c) a zigzag-folded sheet (d) a U-shaped channel
29. 29.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
30. 30.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
31. 31.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) an eggshell (c) an old stone bridge (d) a round pillar
32. 32.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) a ruler (d) a mirror
33. 33.True or false: a roof frame gets its strength from a tube shape. (a) False (b) True
34. 34.🏗️ Which of these gets its strength from a tube shape? (a) a hollow bird bone (b) a temple dome (c) an old stone bridge (d) a bridge truss
35. 35.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) coins (c) sheets of paper (d) a ruler
36. 36.True or false: a bamboo pole gets its strength from arches or domes. (a) True (b) False
37. 37.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) sheets of paper (c) a ruler (d) two books
39. 39.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
40. 40.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed

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