Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 895 · 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 “coins it holds”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.🔍 Which is the odd one out? (a) a flat tissue (b) paper with folded edges (c) rolled paper tubes (d) a zigzag-folded sheet
3. 3.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) an electric tower (c) a temple dome (d) a hollow bird bone
4. 4.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
5. 5.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) rolled paper tubes (d) one flat sheet
6. 6.True or false: a mirror is needed for the paper bridge. (a) True (b) False
7. 7.True or false: a round pillar gets its strength from triangles. (a) True (b) False
8. 8.🔺 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
9. 9.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
10. 10.True or false: a zigzag-folded sheet makes a strong bridge. (a) True (b) False
11. 11.True or false: coins is not needed for the paper bridge. (a) True (b) False
12. 12.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a hollow bird bone (c) an electric tower (d) an old stone bridge
13. 13.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a hollow bird bone (c) a roof frame (d) a bamboo pole
14. 14.🔍 Which is the odd one out? (a) a flat tissue (b) a wet flat sheet (c) a U-shaped channel (d) one flat sheet
15. 15.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
16. 16.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is made of steel (c) it is very hot (d) it is magnetic
17. 17.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
18. 18.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) on a stool edge (d) low and steady
19. 19.🛟 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
20. 20.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we measure it (b) we keep it the same (c) we change it
21. 21.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
22. 22.🔮 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
23. 23.True or false: an old stone bridge gets its strength from a tube shape. (a) False (b) True
24. 24.True or false: a magnet is needed for the paper bridge. (a) True (b) False
25. 25.⚖️ 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
26. 26.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
27. 27.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) more (c) the same number of (d) zero
28. 28.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) triangles (c) tubes
29. 29.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) two books (d) a magnet
31. 31.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) coins it holds (c) the kind of coins (d) the kind of paper
32. 32.🏗️ Where does a round pillar get its strength from? (a) tubes (b) triangles (c) arches and domes
33. 33.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
34. 34.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
35. 35.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a balloon (c) coins (d) sheets of paper
36. 36.🏗️ Where does an eggshell get its strength from? (a) triangles (b) arches and domes (c) tubes
37. 37.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds are magnetic (c) folds make it stiffer (d) folds make it wet
38. 38.🌉 Which of these makes a strong bridge? (a) paper with folded edges (b) a torn flat sheet (c) a wet flat sheet (d) a flat tissue
39. 39.⚖️ 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
40. 40.True or false: an eggshell gets its strength from arches or domes. (a) False (b) True

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