Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 258 · 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.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the kind of paper (c) coins it holds
2. 2.⚖️ 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 measure it (c) we change it
3. 3.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) only water (c) the same coins (d) fewer coins
4. 4.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) the kind of paper (c) coins it holds (d) the kind of coins
5. 5.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
6. 6.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
7. 7.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) not at all (c) more (d) less
8. 8.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) a ruler (d) a battery cell
9. 9.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
10. 10.🏗️ Where does an old stone bridge get its strength from? (a) arches and domes (b) triangles (c) tubes
11. 11.🧺 Which of these is not needed for the paper bridge? (a) coins (b) two books (c) sheets of paper (d) a magnet
12. 12.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
13. 13.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) one flat sheet (d) a zigzag-folded sheet
14. 14.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) turmeric powder (d) two books
15. 15.True or false: a temple dome gets its strength from a tube shape. (a) True (b) False
16. 16.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we measure it (c) we keep it the same
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
18. 18.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) coins (d) a balloon
19. 19.🔺 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
20. 20.True or false: two books is needed for the paper bridge. (a) False (b) True
21. 21.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
22. 22.🔍 Which is the odd one out? (a) one flat sheet (b) a wet flat sheet (c) a torn flat sheet (d) a U-shaped channel
23. 23.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
24. 24.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) coins (c) a magnet (d) a balloon
25. 25.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) tubes (c) arches and domes
26. 26.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
27. 27.🔍 Which is the odd one out? (a) rolled paper tubes (b) a flat tissue (c) a zigzag-folded sheet (d) paper with folded edges
28. 28.True or false: a roof frame gets its strength from arches or domes. (a) False (b) True
29. 29.🏗️ Where does a roof frame get its strength from? (a) tubes (b) arches and domes (c) triangles
30. 30.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on a stool edge (c) on top of a pet (d) high and wobbly
31. 31.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a bamboo pole (c) an electric tower (d) a roof frame
32. 32.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds are magnetic (c) folds make it wet (d) folds make it stiffer
33. 33.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a balloon (c) a ruler (d) a battery cell
34. 34.🔍 Which is the odd one out? (a) one flat sheet (b) a torn flat sheet (c) a flat tissue (d) rolled paper tubes
35. 35.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a magnet (d) a ruler
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? What do we do with “the gap between books”? (a) we keep it the same (b) we change it (c) we measure it
38. 38.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) lick your fingers (c) wash your hands (d) skip washing
39. 39.🧺 Which of these is not needed for the paper bridge? (a) a mirror (b) sheets of paper (c) two books (d) coins
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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