Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 371 · 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.🏗️ Where does a roof frame get its strength from? (a) triangles (b) tubes (c) arches and domes
2. 2.True or false: an eggshell gets its strength from arches or domes. (a) False (b) True
3. 3.True or false: yeast is not needed for the paper bridge. (a) False (b) True
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) sheets of paper (d) turmeric powder
5. 5.⚖️ 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) the kind of paper (c) coins it holds (d) the kind of coins
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) coins (c) a ruler (d) two books
7. 7.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) one flat sheet (d) rolled paper tubes
8. 8.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) tubes (c) arches and domes
9. 9.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it sags and falls (c) it floats up (d) it gets stronger
10. 10.🔍 Which is the odd one out? (a) paper with folded edges (b) a flat tissue (c) rolled paper tubes (d) a U-shaped channel
11. 11.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) arches and domes (c) tubes
12. 12.True or false: a temple dome gets its strength from a tube shape. (a) False (b) True
13. 13.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) True (b) False
14. 14.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) where coins are placed (c) the kind of coins (d) coins it holds
15. 15.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) tubes (c) triangles
16. 16.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) more (d) the same number of
17. 17.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the star (c) the square (d) the triangle
18. 18.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) a balloon (d) sheets of paper
19. 19.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) only water (c) the same coins (d) more coins
20. 20.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
21. 21.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we keep it the same (b) we measure it (c) we change it
22. 22.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) True (b) False
23. 23.True or false: an old stone bridge gets its strength from triangles. (a) True (b) False
24. 24.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) False (b) True
25. 25.True or false: a roof frame gets its strength from a tube shape. (a) False (b) True
26. 26.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
27. 27.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
28. 28.🌉 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
29. 29.True or false: one flat sheet makes a weak bridge. (a) False (b) True
30. 30.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on top of a pet (c) high and wobbly (d) on a stool edge
31. 31.True or false: an eggshell gets its strength from triangles. (a) False (b) True
32. 32.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
33. 33.True or false: an eggshell gets its strength from a tube shape. (a) False (b) True
34. 34.⚖️ 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
35. 35.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) less (c) not at all (d) upward
36. 36.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
37. 37.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
38. 38.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a wet flat sheet (c) paper with folded edges (d) a torn flat sheet
39. 39.True or false: an electric tower gets its strength from a tube shape. (a) True (b) False
40. 40.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) paper with folded edges (c) a U-shaped channel (d) a wet flat sheet

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