Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 556 · 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.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
3. 3.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is made of steel (c) it is magnetic (d) its curved arch shape
4. 4.⚖️ 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
5. 5.🔍 Which is the odd one out? (a) a U-shaped channel (b) a flat tissue (c) rolled paper tubes (d) a zigzag-folded sheet
6. 6.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a hollow bird bone (c) a bamboo pole (d) an electric tower
7. 7.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
8. 8.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) arches and domes (c) triangles
9. 9.🛟 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
10. 10.🏗️ Which of these gets its strength from triangles? (a) a roof frame (b) a hollow bird bone (c) an eggshell (d) a temple dome
11. 11.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) the kind of paper (c) where coins are placed (d) the shape of the paper
12. 12.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) an electric tower (c) a temple dome (d) a round pillar
13. 13.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a balloon (c) two books (d) a magnet
14. 14.🌉 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
15. 15.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) more (c) less (d) not at all
16. 16.🏗️ Where does a temple dome get its strength from? (a) arches and domes (b) triangles (c) tubes
17. 17.⚖️ 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 coins
18. 18.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) arches and domes (c) tubes
19. 19.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a U-shaped channel (c) a torn flat sheet (d) rolled paper tubes
20. 20.True or false: an old stone bridge gets its strength from triangles. (a) False (b) True
21. 21.True or false: a ruler is not needed for the paper bridge. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) a wet flat sheet (d) paper with folded edges
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 is the odd one out? (a) a wet flat sheet (b) paper with folded edges (c) a zigzag-folded sheet (d) a U-shaped channel
25. 25.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
26. 26.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
27. 27.True or false: a ruler is needed for the paper bridge. (a) False (b) True
28. 28.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we keep it the same (b) we measure it (c) we change it
29. 29.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) triangles (c) tubes
30. 30.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) the kind of coins (c) the shape of the paper (d) coins it holds
31. 31.True or false: a round pillar gets its strength from triangles. (a) False (b) True
32. 32.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
33. 33.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the heart shape (c) the triangle (d) the star
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) turmeric powder (c) two books (d) coins
35. 35.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
36. 36.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
37. 37.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
38. 38.True or false: a magnet is needed for the paper bridge. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) paper with folded edges (b) a zigzag-folded sheet (c) a torn flat sheet (d) rolled paper tubes
40. 40.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) only water (d) fewer coins

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