Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 739 · 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 gets its strength from triangles? (a) a hollow bird bone (b) a roof frame (c) a bamboo pole (d) an old stone bridge
2. 2.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is the one thing we change. (a) True (b) False
3. 3.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it floats up (c) it gets stronger (d) it sags and falls
4. 4.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
5. 5.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) arches and domes (c) triangles
6. 6.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a balloon (c) a battery cell (d) two books
7. 7.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
8. 8.True or false: one flat sheet makes a weak bridge. (a) True (b) False
9. 9.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
10. 10.🔍 Which is the odd one out? (a) rolled paper tubes (b) a U-shaped channel (c) paper with folded edges (d) one flat sheet
11. 11.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
12. 12.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on a stool edge (c) on top of a pet (d) high and wobbly
13. 13.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) less (c) more (d) upward
14. 14.True or false: a battery cell is needed for the paper bridge. (a) False (b) True
15. 15.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
16. 16.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) sheets of paper (c) yeast (d) a magnet
17. 17.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) two books (d) turmeric powder
18. 18.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) paper with folded edges (b) a torn flat sheet (c) a wet flat sheet (d) one flat sheet
20. 20.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
21. 21.True or false: one flat sheet makes a strong bridge. (a) False (b) True
22. 22.True or false: coins is needed for the paper bridge. (a) True (b) False
23. 23.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a wet flat sheet (c) rolled paper tubes (d) a U-shaped channel
24. 24.🏗️ Where does an electric tower get its strength from? (a) triangles (b) tubes (c) arches and domes
25. 25.🏗️ Where does a round pillar get its strength from? (a) tubes (b) arches and domes (c) triangles
26. 26.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
27. 27.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the triangle (c) the heart shape (d) the square
28. 28.🌉 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
29. 29.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
30. 30.⚖️ 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
31. 31.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the gap between books (c) the shape of the paper
32. 32.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) True (b) False
33. 33.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) only water (c) the same coins (d) fewer coins
34. 34.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
35. 35.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
36. 36.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
37. 37.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) triangles (c) arches and domes
38. 38.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a ruler (c) a battery cell (d) sheets of paper
39. 39.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) a bamboo pole (c) an old stone bridge (d) a hollow bird bone
40. 40.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge

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