Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 631 · 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 shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the heart shape (c) the triangle (d) the square
2. 2.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) where coins are placed (c) the shape of the paper
3. 3.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a wet flat sheet (c) a U-shaped channel (d) rolled paper tubes
4. 4.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) turmeric powder (c) a battery cell (d) two books
5. 5.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) more (c) not at all (d) less
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) sheets of paper (d) a mirror
7. 7.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) yeast (d) a ruler
8. 8.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) an old stone bridge (c) a round pillar (d) a roof frame
9. 9.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
10. 10.🧺 Which of these is needed for the paper bridge? (a) yeast (b) turmeric powder (c) a balloon (d) sheets of paper
11. 11.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
12. 12.True or false: a magnet is not needed for the paper bridge. (a) True (b) False
13. 13.True or false: an electric tower gets its strength from triangles. (a) True (b) False
14. 14.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a temple dome (c) an old stone bridge (d) a bridge truss
15. 15.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a ruler (c) yeast (d) a magnet
16. 16.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the gap between books (c) the kind of paper (d) where coins are placed
17. 17.🏗️ Where does a round pillar get its strength from? (a) tubes (b) arches and domes (c) triangles
18. 18.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
19. 19.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) rolled paper tubes (c) paper with folded edges (d) a torn flat sheet
20. 20.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we measure it (c) we keep it the same
21. 21.True or false: a flat tissue makes a strong bridge. (a) False (b) True
22. 22.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
23. 23.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) a battery cell (d) two books
24. 24.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) fewer (d) more
25. 25.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a wet flat sheet (c) paper with folded edges (d) a flat tissue
26. 26.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
27. 27.⚖️ 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 keep it the same (c) we change it
28. 28.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a magnet (c) a battery cell (d) coins
29. 29.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
30. 30.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a flat tissue (c) paper with folded edges (d) a zigzag-folded sheet
31. 31.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
32. 32.🔍 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 floats up (d) it gets stronger
33. 33.🔍 Which is the odd one out? (a) a U-shaped channel (b) a zigzag-folded sheet (c) rolled paper tubes (d) a wet flat sheet
34. 34.🏗️ Which of these gets its strength from arches or domes? (a) an eggshell (b) a roof frame (c) a bridge truss (d) a hollow bird bone
35. 35.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) one flat sheet (c) a flat tissue (d) a U-shaped channel
36. 36.⚖️ 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 gap between books (c) coins it holds (d) the kind of coins
37. 37.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
38. 38.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) on top of a pet (d) low and steady
39. 39.🏗️ Which of these gets its strength from triangles? (a) an electric tower (b) a temple dome (c) a bamboo pole (d) a hollow bird bone
40. 40.🧺 Which of these is not needed for the paper bridge? (a) a battery cell (b) two books (c) sheets of paper (d) coins

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