Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 299 · 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 heart shape (b) the square (c) the triangle (d) the star
2. 2.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it wet (c) folds make it stiffer (d) folds are magnetic
3. 3.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
4. 4.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) tubes (c) arches and domes
5. 5.True or false: a magnet is needed for the paper bridge. (a) False (b) True
6. 6.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
7. 7.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the kind of paper (c) the shape of the paper
8. 8.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) more coins (c) the same coins (d) only water
9. 9.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) coins (d) a magnet
10. 10.🔍 Which is the odd one out? (a) rolled paper tubes (b) a zigzag-folded sheet (c) one flat sheet (d) a U-shaped channel
11. 11.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
12. 12.True or false: coins is needed for the paper bridge. (a) True (b) False
13. 13.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) a mirror (d) two books
14. 14.🧺 Which of these is needed for the paper bridge? (a) coins (b) yeast (c) a battery cell (d) a magnet
15. 15.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
16. 16.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) tubes (c) arches and domes
17. 17.True or false: a flat tissue makes a strong bridge. (a) True (b) False
18. 18.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) high and wobbly (c) on a stool edge (d) low and steady
19. 19.🌉 Which of these makes a strong bridge? (a) rolled paper tubes (b) a torn flat sheet (c) a flat tissue (d) one flat sheet
20. 20.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) one flat sheet (c) a zigzag-folded sheet (d) rolled paper tubes
21. 21.🏗️ Which of these gets its strength from triangles? (a) a roof frame (b) a bamboo pole (c) an old stone bridge (d) a round pillar
22. 22.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) triangles (c) tubes
23. 23.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) a bridge truss (c) a temple dome (d) an eggshell
24. 24.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a U-shaped channel (c) a flat tissue (d) rolled paper tubes
25. 25.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we measure it (c) we change it
26. 26.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) a torn flat sheet (d) rolled paper tubes
27. 27.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) one flat sheet (c) paper with folded edges (d) a flat tissue
28. 28.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we measure it (c) we keep it the same
29. 29.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
30. 30.True or false: a balloon is needed for the paper bridge. (a) False (b) True
31. 31.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False
32. 32.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of coins (b) the shape of the paper (c) coins it holds
33. 33.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) a mirror (d) two books
34. 34.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we keep it the same (c) we measure it
35. 35.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a roof frame (c) an old stone bridge (d) a hollow bird bone
36. 36.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) a ruler (c) sheets of paper (d) two books
37. 37.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) a hollow bird bone (c) a bridge truss (d) a roof frame
38. 38.🔍 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 sags and falls (d) it floats up
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) False (b) True
40. 40.True or false: a mirror is needed for the paper bridge. (a) True (b) False

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