Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 330 · 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.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
2. 2.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
3. 3.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) a hollow bird bone (c) a temple dome (d) an old stone bridge
4. 4.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
5. 5.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) a ruler (c) sheets of paper (d) coins
6. 6.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) wash your hands (c) rub your eyes (d) skip washing
7. 7.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) tubes (c) arches and domes
8. 8.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
9. 9.True or false: an electric tower gets its strength from arches or domes. (a) False (b) True
10. 10.True or false: a flat tissue makes a weak bridge. (a) False (b) True
11. 11.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
12. 12.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) tubes (c) triangles
13. 13.⚖️ 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
14. 14.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) more (c) fewer (d) the same number of
15. 15.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a wet flat sheet (c) a U-shaped channel (d) paper with folded edges
16. 16.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it gets stronger (c) it floats up (d) it sags and falls
17. 17.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
18. 18.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) on top of a pet (d) low and steady
19. 19.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) tubes (c) triangles
20. 20.🧺 Which of these is not needed for the paper bridge? (a) coins (b) two books (c) sheets of paper (d) turmeric powder
21. 21.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) rolled paper tubes (c) a wet flat sheet (d) a flat tissue
22. 22.⚖️ 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 measure it (c) we change it
23. 23.True or false: a round pillar gets its strength from arches or domes. (a) False (b) True
24. 24.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) an eggshell (c) a bridge truss (d) a bamboo pole
25. 25.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) paper with folded edges (d) a wet flat sheet
26. 26.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) False (b) True
27. 27.🧺 Which of these is not needed for the paper bridge? (a) a magnet (b) coins (c) sheets of paper (d) a ruler
28. 28.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) fewer coins (c) the same coins (d) only water
29. 29.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) yeast (c) a magnet (d) turmeric powder
30. 30.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) an electric tower (c) a temple dome (d) a bamboo pole
31. 31.🔍 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
32. 32.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) True (b) False
33. 33.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
34. 34.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) less (c) not at all (d) more
35. 35.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) coins (d) a mirror
36. 36.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) True (b) False
37. 37.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
38. 38.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we measure it (c) we keep it the same
39. 39.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the square (c) the star (d) the triangle
40. 40.🏗️ Which of these gets its strength from a tube shape? (a) a bamboo pole (b) a bridge truss (c) an eggshell (d) a roof frame

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