Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 667 · 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 of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) yeast (d) a ruler
2. 2.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) fewer coins (c) more coins (d) only water
3. 3.🛟 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
4. 4.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) sheets of paper (d) turmeric powder
5. 5.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
6. 6.⚖️ 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 paper
7. 7.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) a zigzag-folded sheet (c) paper with folded edges (d) rolled paper tubes
8. 8.True or false: a ruler is needed for the paper bridge. (a) True (b) False
9. 9.🏗️ Which of these gets its strength from arches or domes? (a) a temple dome (b) a bridge truss (c) a roof frame (d) a bamboo pole
10. 10.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we keep it the same (b) we change it (c) we measure it
11. 11.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
12. 12.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) wash your hands (c) skip washing (d) lick your fingers
13. 13.True or false: a ruler is not needed for the paper bridge. (a) True (b) False
14. 14.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) one flat sheet (c) a U-shaped channel (d) rolled paper tubes
15. 15.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the triangle (c) the star (d) the heart shape
16. 16.⚖️ 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
17. 17.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a temple dome (c) a bamboo pole (d) an electric tower
18. 18.⚖️ 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
19. 19.🌉 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 stiffer (d) folds make it wet
20. 20.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
21. 21.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is very hot (c) it is magnetic (d) it is made of steel
22. 22.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
23. 23.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) triangles (c) tubes
24. 24.🌉 Which of these makes a strong bridge? (a) a U-shaped channel (b) a torn flat sheet (c) a wet flat sheet (d) one flat sheet
25. 25.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) tubes (c) arches and domes
26. 26.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) the kind of coins (c) coins it holds (d) the kind of paper
27. 27.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
28. 28.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
29. 29.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a torn flat sheet (c) a wet flat sheet (d) rolled paper tubes
30. 30.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a ruler (c) a balloon (d) turmeric powder
31. 31.⚖️ 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
32. 32.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) one flat sheet (c) a flat tissue (d) paper with folded edges
33. 33.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) one flat sheet (c) a torn flat sheet (d) a flat tissue
34. 34.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the gap between books (c) coins it holds
35. 35.True or false: a flat tissue makes a strong bridge. (a) True (b) False
36. 36.⚖️ 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
37. 37.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
38. 38.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
39. 39.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) paper with folded edges (c) a torn flat sheet (d) rolled paper tubes
40. 40.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed

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