Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 385 · 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.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) high and wobbly (d) low and steady
2. 2.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) tubes (c) triangles
3. 3.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a magnet (c) a mirror (d) two books
4. 4.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
5. 5.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) lick your fingers (c) rub your eyes (d) skip washing
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) two books (d) a magnet
7. 7.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
8. 8.True or false: an electric tower gets its strength from triangles. (a) True (b) False
9. 9.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a balloon (c) coins (d) two books
10. 10.🔍 Which is the odd one out? (a) a torn flat sheet (b) a wet flat sheet (c) paper with folded edges (d) one flat sheet
11. 11.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is made of steel (c) it is magnetic (d) it is very hot
12. 12.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) the shape of the paper (c) the gap between books (d) the kind of paper
13. 13.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) more coins (c) the same coins (d) fewer coins
14. 14.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the triangle (c) the star (d) the square
15. 15.True or false: a flat tissue makes a weak bridge. (a) True (b) False
16. 16.True or false: two books is needed for the paper bridge. (a) True (b) False
17. 17.True or false: a hollow bird bone gets its strength from arches or domes. (a) False (b) True
18. 18.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a U-shaped channel (c) one flat sheet (d) a zigzag-folded sheet
19. 19.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we keep it the same (b) we change it (c) we measure it
20. 20.True or false: a balloon is needed for the paper bridge. (a) True (b) False
21. 21.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a U-shaped channel (c) a wet flat sheet (d) a zigzag-folded sheet
22. 22.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) rolled paper tubes (d) a flat tissue
23. 23.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a round pillar (c) a hollow bird bone (d) a bridge truss
24. 24.True or false: a ruler is needed for the paper bridge. (a) False (b) True
25. 25.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) paper with folded edges (c) a zigzag-folded sheet (d) a U-shaped channel
26. 26.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a wet flat sheet (c) rolled paper tubes (d) a flat tissue
27. 27.True or false: a roof frame gets its strength from triangles. (a) True (b) False
28. 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) a balloon (d) sheets of paper
29. 29.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a mirror (d) a ruler
31. 31.True or false: a bridge truss gets its strength from arches or domes. (a) True (b) False
32. 32.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
33. 33.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) an old stone bridge (c) a temple dome (d) a round pillar
34. 34.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
35. 35.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a magnet (c) coins (d) a ruler
36. 36.True or false: a mirror is needed for the paper bridge. (a) False (b) True
37. 37.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
38. 38.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a balloon (c) a ruler (d) a battery cell
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) a ruler (c) two books (d) sheets of paper
40. 40.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True

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