Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 342 · 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.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
2. 2.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
3. 3.⚖️ 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
4. 4.True or false: coins is needed for the paper bridge. (a) False (b) True
5. 5.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of coins (b) coins it holds (c) the shape of the paper
6. 6.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the heart shape (c) the star (d) the triangle
7. 7.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) an old stone bridge (c) a hollow bird bone (d) a bridge truss
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) yeast (d) two books
9. 9.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) low and steady (c) on top of a pet (d) on a stool edge
10. 10.True or false: yeast is not needed for the paper bridge. (a) True (b) False
11. 11.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a bridge truss (c) a roof frame (d) a temple dome
12. 12.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) the same number of (d) zero
13. 13.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
14. 14.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) more coins (c) the same coins (d) only water
15. 15.True or false: an old stone bridge gets its strength from a tube shape. (a) True (b) False
16. 16.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we change it (c) we keep it the same
17. 17.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
18. 18.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
19. 19.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we change it (c) we keep it the same
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) turmeric powder (c) coins (d) two books
21. 21.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a ruler (c) two books (d) a balloon
22. 22.🏗️ Where does an eggshell get its strength from? (a) tubes (b) arches and domes (c) triangles
23. 23.🏗️ Where does a temple dome get its strength from? (a) tubes (b) triangles (c) arches and domes
24. 24.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
25. 25.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it wet (c) folds are magnetic (d) folds make it stiffer
26. 26.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a flat tissue (d) rolled paper tubes
27. 27.True or false: a round pillar gets its strength from a tube shape. (a) True (b) False
28. 28.True or false: a bridge truss gets its strength from a tube shape. (a) True (b) False
29. 29.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) a ruler (c) sheets of paper (d) coins
30. 30.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) where coins are placed
31. 31.🏗️ Which of these gets its strength from triangles? (a) an electric tower (b) a hollow bird bone (c) a temple dome (d) a bamboo pole
32. 32.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it floats up (c) it sags and falls (d) it turns to card
33. 33.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
34. 34.True or false: a bamboo pole gets its strength from triangles. (a) True (b) False
35. 35.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) less (c) more (d) not at all
36. 36.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True
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.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) a magnet (d) coins
39. 39.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) an old stone bridge (c) an eggshell (d) a bamboo pole
40. 40.🔍 Which is the odd one out? (a) one flat sheet (b) paper with folded edges (c) a flat tissue (d) a torn flat sheet

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