Paper Bridge STEM Challenge Worksheet

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

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