Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 859 · 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 shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the star (c) the triangle (d) the heart shape
2. 2.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) rolled paper tubes (c) paper with folded edges (d) a wet flat sheet
3. 3.True or false: one flat sheet makes a strong bridge. (a) True (b) False
4. 4.🏗️ Where does a round pillar get its strength from? (a) tubes (b) arches and domes (c) triangles
5. 5.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) the shape of the paper (c) the kind of paper (d) coins it holds
6. 6.🔍 Which is the odd one out? (a) one flat sheet (b) a wet flat sheet (c) a U-shaped channel (d) a flat tissue
7. 7.🏗️ Which of these gets its strength from arches or domes? (a) an old stone bridge (b) a hollow bird bone (c) an electric tower (d) a bamboo pole
8. 8.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) tubes (c) arches and domes
9. 9.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we change it (c) we keep it the same
10. 10.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) where coins are placed (c) the kind of coins (d) the shape of the paper
11. 11.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
12. 12.True or false: a battery cell is not needed for the paper bridge. (a) True (b) False
13. 13.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) False (b) True
14. 14.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) its curved arch shape (c) it is magnetic (d) it is very hot
15. 15.True or false: an electric tower gets its strength from triangles. (a) True (b) False
16. 16.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we change it (c) we keep it the same
17. 17.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) two books (c) sheets of paper (d) coins
18. 18.🧺 Which of these is not needed for the paper bridge? (a) turmeric powder (b) two books (c) a ruler (d) sheets of paper
19. 19.🏗️ Where does an eggshell get its strength from? (a) tubes (b) triangles (c) arches and domes
20. 20.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) arches and domes (c) tubes
21. 21.⚖️ 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 measure it (c) we change it
22. 22.🔍 Which is the odd one out? (a) a wet flat sheet (b) a flat tissue (c) rolled paper tubes (d) one flat sheet
23. 23.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
24. 24.🛟 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
25. 25.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) a roof frame (c) a temple dome (d) a round pillar
26. 26.True or false: a roof frame gets its strength from triangles. (a) True (b) False
27. 27.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) skip washing (d) lick your fingers
28. 28.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
29. 29.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
30. 30.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
31. 31.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) coins (c) sheets of paper (d) a magnet
32. 32.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
33. 33.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) True (b) False
35. 35.⚖️ 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
36. 36.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
37. 37.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds add glue (c) folds make it wet (d) folds make it stiffer
38. 38.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
39. 39.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) sheets of paper (c) coins (d) a ruler

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