Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 679 · 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 needed for the paper bridge? (a) a mirror (b) coins (c) turmeric powder (d) yeast
2. 2.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a bamboo pole (c) a roof frame (d) an old stone bridge
3. 3.🏗️ Where does an eggshell get its strength from? (a) tubes (b) arches and domes (c) triangles
4. 4.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) rolled paper tubes (c) one flat sheet (d) a torn flat sheet
5. 5.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
6. 6.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds are magnetic (c) folds make it stiffer (d) folds add glue
7. 7.True or false: a battery cell is needed for the paper bridge. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) a wet flat sheet (b) a U-shaped channel (c) a torn flat sheet (d) one flat sheet
9. 9.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a hollow bird bone (c) an electric tower (d) an old stone bridge
10. 10.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) a bridge truss (c) a hollow bird bone (d) a roof frame
11. 11.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) True (b) False
12. 12.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
13. 13.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) arches and domes (c) tubes
14. 14.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
15. 15.True or false: coins is needed for the paper bridge. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) a torn flat sheet (b) a flat tissue (c) one flat sheet (d) a zigzag-folded sheet
17. 17.⚖️ 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
18. 18.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a U-shaped channel (c) paper with folded edges (d) one flat sheet
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) sheets of paper (c) two books (d) a ruler
20. 20.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) an eggshell (c) a hollow bird bone (d) an old stone bridge
21. 21.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the gap between books (b) coins it holds (c) the shape of the paper
22. 22.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
23. 23.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) True (b) False
24. 24.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) turmeric powder (d) sheets of paper
25. 25.🧺 Which of these is not needed for the paper bridge? (a) turmeric powder (b) a ruler (c) two books (d) coins
26. 26.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the square (c) the heart shape (d) the star
27. 27.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) zero (c) fewer (d) the same number of
28. 28.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) two books (d) a battery cell
29. 29.🔍 Which is the odd one out? (a) rolled paper tubes (b) a zigzag-folded sheet (c) a U-shaped channel (d) a flat tissue
30. 30.True or false: one flat sheet makes a weak bridge. (a) True (b) False
31. 31.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) rub your eyes (c) lick your fingers (d) wash your hands
32. 32.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we keep it the same (c) we measure it
33. 33.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a wet flat sheet (c) rolled paper tubes (d) a U-shaped channel
34. 34.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
35. 35.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it sags and falls (c) it turns to card (d) it floats up
36. 36.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) a torn flat sheet (b) a zigzag-folded sheet (c) a U-shaped channel (d) rolled paper tubes
38. 38.True or false: two books is needed for the paper bridge. (a) True (b) False
39. 39.True or false: a temple dome gets its strength from triangles. (a) False (b) True
40. 40.⚖️ 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

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