Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 832 · 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) high and wobbly (b) low and steady (c) on top of a pet (d) on a stool edge
2. 2.True or false: a ruler is needed for the paper bridge. (a) True (b) False
3. 3.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
4. 4.🏗️ Which of these gets its strength from triangles? (a) an electric tower (b) an old stone bridge (c) a temple dome (d) an eggshell
5. 5.🏗️ Where does a roof frame get its strength from? (a) tubes (b) arches and domes (c) triangles
6. 6.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a battery cell (c) two books (d) yeast
7. 7.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
8. 8.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we keep it the same (b) we change it (c) we measure it
9. 9.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) False (b) True
10. 10.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
11. 11.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) yeast (d) a ruler
12. 12.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we keep it the same (c) we measure it
13. 13.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) paper with folded edges (c) rolled paper tubes (d) a zigzag-folded sheet
14. 14.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a flat tissue (c) one flat sheet (d) rolled paper tubes
15. 15.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
16. 16.True or false: a temple dome gets its strength from triangles. (a) False (b) True
17. 17.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
18. 18.True or false: coins is not needed for the paper bridge. (a) True (b) False
19. 19.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
20. 20.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the square (c) the heart shape (d) the triangle
21. 21.⚖️ 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
22. 22.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
23. 23.🔍 Which is the odd one out? (a) a torn flat sheet (b) a zigzag-folded sheet (c) one flat sheet (d) a flat tissue
24. 24.True or false: one flat sheet makes a weak bridge. (a) True (b) False
25. 25.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) yeast (c) sheets of paper (d) a magnet
26. 26.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
27. 27.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
28. 28.🌉 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 stiffer (d) folds make it wet
29. 29.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True
30. 30.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) two books (c) coins (d) a balloon
31. 31.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) coins (d) a battery cell
32. 32.🏗️ Which of these gets its strength from a tube shape? (a) a round pillar (b) a roof frame (c) a temple dome (d) an electric tower
33. 33.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it sags and falls (c) it floats up (d) it turns to card
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a mirror (c) sheets of paper (d) two books
35. 35.🔍 Which is the odd one out? (a) a wet flat sheet (b) a flat tissue (c) a U-shaped channel (d) one flat sheet
36. 36.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) False (b) True
37. 37.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) more (d) fewer
38. 38.🔮 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
39. 39.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) skip washing (c) wash your hands (d) rub your eyes
40. 40.True or false: a magnet is not needed for the paper bridge. (a) False (b) True

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