Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 475 · 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.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds are magnetic (c) folds add glue (d) folds make it wet
2. 2.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the triangle (c) the square (d) the star
3. 3.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
4. 4.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
5. 5.🧺 Which of these is not needed for the paper bridge? (a) a battery cell (b) a ruler (c) sheets of paper (d) two books
6. 6.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
7. 7.🏗️ Where does an eggshell get its strength from? (a) triangles (b) arches and domes (c) tubes
8. 8.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) wash your hands (d) skip washing
9. 9.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) yeast (d) sheets of paper
10. 10.⚖️ 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 change it (c) we keep it the same
11. 11.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
12. 12.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
13. 13.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the kind of paper (c) the shape of the paper
14. 14.⚖️ 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
15. 15.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a ruler (c) a battery cell (d) turmeric powder
16. 16.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) tubes (c) arches and domes
17. 17.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the gap between books (b) the shape of the paper (c) the kind of paper (d) where coins are placed
18. 18.True or false: a bamboo pole gets its strength from triangles. (a) True (b) False
19. 19.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) low and steady (c) on a stool edge (d) high and wobbly
20. 20.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) more (d) the same number of
21. 21.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) True (b) False
22. 22.🏗️ Which of these gets its strength from triangles? (a) a roof frame (b) a temple dome (c) a hollow bird bone (d) an old stone bridge
23. 23.🏗️ Where does a round pillar get its strength from? (a) tubes (b) triangles (c) arches and domes
24. 24.True or false: a battery cell is not needed for the paper bridge. (a) True (b) False
25. 25.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it turns to card (c) it gets stronger (d) it floats up
26. 26.🧺 Which of these is not needed for the paper bridge? (a) a mirror (b) two books (c) a ruler (d) coins
27. 27.True or false: yeast is needed for the paper bridge. (a) False (b) True
28. 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a battery cell (c) sheets of paper (d) coins
29. 29.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
30. 30.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
31. 31.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a zigzag-folded sheet (c) a torn flat sheet (d) rolled paper tubes
32. 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) turmeric powder (d) two books
33. 33.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) triangles (c) tubes
34. 34.⚖️ 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 change it (c) we measure it
35. 35.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) tubes (c) arches and domes
36. 36.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) an old stone bridge (c) an eggshell (d) a hollow bird bone
37. 37.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
38. 38.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
39. 39.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
40. 40.🧺 Which of these is needed for the paper bridge? (a) two books (b) a balloon (c) a battery cell (d) a mirror

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