Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 193 · 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) a ruler (b) coins (c) two books (d) a magnet
2. 2.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) turmeric powder (c) two books (d) coins
3. 3.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a magnet (c) a battery cell (d) sheets of paper
4. 4.🧺 Which of these is not needed for the paper bridge? (a) a mirror (b) a ruler (c) coins (d) sheets of paper
5. 5.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) rolled paper tubes (c) paper with folded edges (d) a wet flat sheet
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 change it (c) we keep it the same
7. 7.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) tubes (c) arches and domes
8. 8.🌉 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
9. 9.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
10. 10.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) low and steady (c) on a stool edge (d) high and wobbly
11. 11.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we measure it (c) we keep it the same
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) yeast (c) a ruler (d) two books
13. 13.True or false: an electric tower gets its strength from arches or domes. (a) False (b) True
14. 14.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
15. 15.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) two books (c) a battery cell (d) a balloon
16. 16.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
17. 17.🔍 Which is the odd one out? (a) paper with folded edges (b) rolled paper tubes (c) a zigzag-folded sheet (d) a torn flat sheet
18. 18.🏗️ Where does a temple dome get its strength from? (a) arches and domes (b) tubes (c) triangles
19. 19.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
20. 20.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is magnetic (c) its curved arch shape (d) it is very hot
21. 21.True or false: a bridge truss gets its strength from arches or domes. (a) False (b) True
22. 22.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) fewer (c) more (d) zero
23. 23.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) only water (d) fewer coins
24. 24.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
25. 25.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) a bridge truss (c) an electric tower (d) an eggshell
26. 26.True or false: a U-shaped channel makes a strong bridge. (a) True (b) False
27. 27.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
28. 28.🌉 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
29. 29.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) two books (c) a magnet (d) coins
30. 30.True or false: one flat sheet makes a weak bridge. (a) True (b) False
31. 31.True or false: turmeric powder is not needed for the paper bridge. (a) True (b) False
32. 32.True or false: a round pillar gets its strength from arches or domes. (a) True (b) False
33. 33.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) False (b) True
34. 34.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) tubes (c) triangles
35. 35.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
36. 36.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) a balloon (d) sheets of paper
37. 37.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we change it (c) we keep it the same
38. 38.True or false: a flat tissue makes a strong bridge. (a) True (b) False
39. 39.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the triangle (c) the square (d) the heart shape
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) two books (c) sheets of paper (d) coins

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