Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 470 · 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 flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
2. 2.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) less (c) more (d) upward
3. 3.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
4. 4.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
5. 5.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) an eggshell (c) a bamboo pole (d) a bridge truss
6. 6.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds make it stiffer (c) folds add glue (d) folds are magnetic
7. 7.🔺 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
8. 8.True or false: a hollow bird bone gets its strength from arches or domes. (a) True (b) False
9. 9.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
10. 10.True or false: a flat tissue makes a strong bridge. (a) False (b) True
11. 11.True or false: a round pillar gets its strength from a tube shape. (a) False (b) True
12. 12.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) low and steady (c) on top of a pet (d) high and wobbly
13. 13.True or false: two books is not needed for the paper bridge. (a) True (b) False
14. 14.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
15. 15.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we keep it the same (c) we measure it
16. 16.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a battery cell (c) sheets of paper (d) a magnet
17. 17.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
18. 18.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
19. 19.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
20. 20.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
21. 21.True or false: a balloon is needed for the paper bridge. (a) False (b) True
22. 22.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a zigzag-folded sheet (c) one flat sheet (d) a wet flat sheet
23. 23.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) coins (c) a battery cell (d) a magnet
24. 24.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) True (b) False
25. 25.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
26. 26.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
27. 27.True or false: a ruler is needed for the paper bridge. (a) True (b) False
28. 28.⚖️ 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 change it (c) we measure it
29. 29.🔍 Which is the odd one out? (a) a U-shaped channel (b) a flat tissue (c) a zigzag-folded sheet (d) rolled paper tubes
30. 30.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
31. 31.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) zero (d) the same number of
32. 32.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
33. 33.🏗️ Where does a round pillar get its strength from? (a) triangles (b) tubes (c) arches and domes
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) False (b) True
35. 35.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) a flat tissue (b) rolled paper tubes (c) a torn flat sheet (d) one flat sheet
37. 37.🧺 Which of these is not needed for the paper bridge? (a) yeast (b) two books (c) coins (d) sheets of paper
38. 38.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
39. 39.True or false: a hollow bird bone gets its strength from triangles. (a) False (b) True
40. 40.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) wash your hands (c) skip washing (d) rub your eyes

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