Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 280 · 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.🔍 Which is the odd one out? (a) one flat sheet (b) a torn flat sheet (c) a U-shaped channel (d) a flat tissue
2. 2.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a ruler (d) a mirror
3. 3.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we change it (c) we measure it
4. 4.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a temple dome (c) an electric tower (d) a hollow bird bone
5. 5.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) more coins (d) fewer coins
6. 6.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) one flat sheet (d) rolled paper tubes
7. 7.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
8. 8.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) more (c) not at all (d) less
9. 9.🏗️ Where does an eggshell get its strength from? (a) tubes (b) triangles (c) arches and domes
10. 10.🛟 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
11. 11.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) the kind of paper
12. 12.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a flat tissue (c) rolled paper tubes (d) a wet flat sheet
13. 13.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) tubes (c) triangles
14. 14.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
15. 15.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False
16. 16.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a ruler (c) a battery cell (d) turmeric powder
17. 17.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) more (c) fewer (d) the same number of
18. 18.True or false: coins is needed for the paper bridge. (a) True (b) False
19. 19.True or false: a temple dome gets its strength from a tube shape. (a) False (b) True
20. 20.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a flat tissue (d) a zigzag-folded sheet
21. 21.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
22. 22.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
23. 23.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
24. 24.🏗️ Which of these gets its strength from triangles? (a) an electric tower (b) a temple dome (c) an eggshell (d) a bamboo pole
25. 25.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
26. 26.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
27. 27.True or false: a ruler is needed for the paper bridge. (a) True (b) False
28. 28.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the star (c) the heart shape (d) the triangle
29. 29.True or false: a flat tissue makes a weak bridge. (a) False (b) True
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a battery cell (c) a ruler (d) sheets of paper
31. 31.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
32. 32.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) arches and domes (c) tubes
33. 33.🧺 Which of these is not needed for the paper bridge? (a) coins (b) two books (c) a ruler (d) a mirror
34. 34.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) rolled paper tubes (c) a zigzag-folded sheet (d) a flat tissue
35. 35.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the shape of the paper (b) where coins are placed (c) the gap between books (d) coins it holds
36. 36.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
37. 37.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) triangles (c) tubes
38. 38.⚖️ 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
39. 39.True or false: a battery cell is needed for the paper bridge. (a) True (b) False
40. 40.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) an old stone bridge (c) a round pillar (d) a bridge truss

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