Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 56 · 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 round pillar (b) an eggshell (c) a bridge truss (d) a temple dome
2. 2.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a hollow bird bone (c) an old stone bridge (d) a roof frame
3. 3.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) low and steady (d) on a stool edge
4. 4.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) upward (c) more (d) less
5. 5.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) coins (d) turmeric powder
6. 6.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) the kind of paper (c) the shape of the paper (d) the gap between books
7. 7.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a wet flat sheet (c) one flat sheet (d) a zigzag-folded sheet
8. 8.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) an electric tower (c) a hollow bird bone (d) a round pillar
9. 9.🏗️ Where does an electric tower get its strength from? (a) tubes (b) arches and domes (c) triangles
10. 10.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) False (b) True
11. 11.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) yeast (d) coins
12. 12.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
13. 13.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a round pillar (c) an old stone bridge (d) an electric tower
14. 14.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
15. 15.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we keep it the same (c) we measure it
16. 16.🌉 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 wet (d) folds make it stiffer
17. 17.⚖️ 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 change it (c) we measure it
18. 18.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a battery cell (c) sheets of paper (d) a ruler
20. 20.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) sheets of paper (d) a mirror
22. 22.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it gets stronger (c) it floats up (d) it sags and falls
23. 23.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) coins it holds (c) the shape of the paper (d) where coins are placed
24. 24.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
25. 25.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
26. 26.True or false: a bridge truss gets its strength from a tube shape. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) paper with folded edges (d) a flat tissue
28. 28.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) triangles (c) tubes
29. 29.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) zero (c) fewer (d) the same number of
30. 30.True or false: two books is not needed for the paper bridge. (a) True (b) False
31. 31.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
32. 32.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) yeast (c) coins (d) a balloon
33. 33.True or false: paper with folded edges makes a strong bridge. (a) True (b) False
34. 34.🏗️ Which of these gets its strength from a tube shape? (a) a bamboo pole (b) an old stone bridge (c) an eggshell (d) an electric tower
35. 35.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
36. 36.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
37. 37.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a magnet (c) two books (d) a balloon
38. 38.🏗️ Where does an old stone bridge get its strength from? (a) arches and domes (b) tubes (c) triangles
39. 39.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
40. 40.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) a battery cell (d) sheets of paper

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