Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 461 · 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.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
2. 2.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) more (c) fewer (d) zero
3. 3.🔍 Which is the odd one out? (a) a torn flat sheet (b) rolled paper tubes (c) a wet flat sheet (d) a flat tissue
4. 4.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) only water (c) more coins (d) the same coins
5. 5.🔺 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 square (d) the heart shape
6. 6.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
7. 7.True or false: coins is not needed for the paper bridge. (a) False (b) True
8. 8.⚖️ 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 measure it (c) we change it
9. 9.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) a U-shaped channel (c) paper with folded edges (d) rolled paper tubes
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a mirror (c) coins (d) sheets of paper
11. 11.🏗️ Which of these gets its strength from triangles? (a) an electric tower (b) an eggshell (c) a round pillar (d) an old stone bridge
12. 12.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) two books (d) a balloon
13. 13.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) a temple dome (c) a bridge truss (d) a bamboo pole
14. 14.True or false: yeast is needed for the paper bridge. (a) False (b) True
15. 15.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
16. 16.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) upward (c) not at all (d) less
17. 17.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) turmeric powder (d) sheets of paper
18. 18.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
19. 19.⚖️ 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 kind of coins (c) where coins are placed (d) coins it holds
20. 20.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) True (b) False
21. 21.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) arches and domes (c) tubes
22. 22.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
23. 23.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds add glue (c) folds make it wet (d) folds are magnetic
24. 24.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the kind of coins (c) the shape of the paper
25. 25.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) the shape of the paper (c) the kind of coins (d) coins it holds
26. 26.True or false: a flat tissue makes a strong bridge. (a) False (b) True
27. 27.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of 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 battery cell (b) a magnet (c) sheets of paper (d) yeast
29. 29.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a U-shaped channel (c) a torn flat sheet (d) rolled paper tubes
30. 30.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) True (b) False
31. 31.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) high and wobbly (c) on top of a pet (d) low and steady
32. 32.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) a torn flat sheet (b) one flat sheet (c) a zigzag-folded sheet (d) a wet flat sheet
34. 34.⚖️ 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
35. 35.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
36. 36.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) tubes (c) triangles
37. 37.🔍 Which is the odd one out? (a) paper with folded edges (b) a U-shaped channel (c) a torn flat sheet (d) a zigzag-folded sheet
38. 38.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) a U-shaped channel (b) paper with folded edges (c) a zigzag-folded sheet (d) one flat sheet
40. 40.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) rolled paper tubes (d) a torn flat sheet

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