Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 931 · 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 torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
2. 2.True or false: coins is not needed for the paper bridge. (a) False (b) True
3. 3.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) one flat sheet (c) rolled paper tubes (d) a zigzag-folded sheet
4. 4.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we keep it the same (c) we measure it
5. 5.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a balloon (c) a ruler (d) coins
6. 6.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
7. 7.⚖️ 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
8. 8.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a mirror (c) yeast (d) coins
9. 9.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) an old stone bridge (c) a temple dome (d) an electric tower
10. 10.🔺 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 triangle (d) the square
11. 11.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) more (c) the same number of (d) zero
12. 12.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
13. 13.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) triangles (c) arches and domes
14. 14.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a wet flat sheet (c) rolled paper tubes (d) a torn flat sheet
15. 15.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) sheets of paper (d) a battery cell
16. 16.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True
17. 17.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the shape of the paper (c) the kind of paper (d) the kind of coins
18. 18.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
19. 19.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
20. 20.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) rub your eyes (c) wash your hands (d) lick your fingers
21. 21.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) the shape of the paper (c) where coins are placed (d) the gap between books
22. 22.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
23. 23.True or false: a flat tissue makes a weak bridge. (a) True (b) False
24. 24.True or false: an eggshell gets its strength from arches or domes. (a) False (b) True
25. 25.🏗️ Where does a temple dome get its strength from? (a) triangles (b) tubes (c) arches and domes
26. 26.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
27. 27.True or false: an electric tower gets its strength from arches or domes. (a) False (b) True
28. 28.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
29. 29.True or false: an eggshell gets its strength from triangles. (a) False (b) True
30. 30.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we keep it the same (b) we measure it (c) we change it
31. 31.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
32. 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) two books (d) yeast
33. 33.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a mirror (c) two books (d) a battery cell
34. 34.🔍 Which is the odd one out? (a) rolled paper tubes (b) a torn flat sheet (c) one flat sheet (d) a flat tissue
35. 35.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it wet (c) folds make it stiffer (d) folds are magnetic
36. 36.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
37. 37.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
38. 38.True or false: two books is not needed for the paper bridge. (a) True (b) False
39. 39.⚖️ 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
40. 40.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is made of steel (c) it is magnetic (d) its curved arch shape

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