Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 493 · 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 two books for the paper bridge? (a) needed (b) not needed
2. 2.True or false: a zigzag-folded sheet makes a strong bridge. (a) True (b) False
3. 3.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) tubes (c) triangles
4. 4.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we change it (c) we keep it the same
5. 5.⚖️ 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
6. 6.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a hollow bird bone (c) a roof frame (d) a temple dome
7. 7.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) zero (c) the same number of (d) fewer
8. 8.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the gap between books (c) the kind of coins (d) the shape of the paper
9. 9.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
10. 10.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
11. 11.🏗️ Where does a round pillar get its strength from? (a) tubes (b) triangles (c) arches and domes
12. 12.True or false: a balloon is needed for the paper bridge. (a) False (b) True
13. 13.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
14. 14.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
15. 15.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) tubes (c) triangles
16. 16.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we change it (c) we keep it the same
17. 17.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) low and steady (c) on a stool edge (d) on top of a pet
18. 18.🏗️ Where does an eggshell get its strength from? (a) triangles (b) tubes (c) arches and domes
19. 19.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) fewer coins (c) only water (d) the same coins
20. 20.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a bridge truss (c) a round pillar (d) a temple dome
21. 21.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we keep it the same (c) we change it
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) a balloon (d) coins
23. 23.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
24. 24.🏗️ Where does an old stone bridge get its strength from? (a) arches and domes (b) triangles (c) tubes
25. 25.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a flat tissue (c) a U-shaped channel (d) rolled paper tubes
26. 26.True or false: a balloon is not needed for the paper bridge. (a) True (b) False
27. 27.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it gets stronger (c) it turns to card (d) it floats up
28. 28.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) tubes (c) arches and domes
29. 29.True or false: a bridge truss gets its strength from arches or domes. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) a flat tissue (b) a wet flat sheet (c) one flat sheet (d) paper with folded edges
31. 31.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we keep it the same (c) we measure it
32. 32.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
33. 33.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) one flat sheet (c) a U-shaped channel (d) a zigzag-folded sheet
34. 34.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) less (c) upward (d) more
35. 35.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) True (b) False
36. 36.⚖️ 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 measure it (c) we change it
37. 37.True or false: a flat tissue makes a strong bridge. (a) False (b) True
38. 38.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) True (b) False
40. 40.True or false: an electric tower gets its strength from triangles. (a) False (b) True

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