Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 453 · 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: yeast is not needed for the paper bridge. (a) False (b) True
2. 2.🏗️ Where does a round pillar get its strength from? (a) triangles (b) arches and domes (c) tubes
3. 3.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
4. 4.🏗️ Where does a roof frame get its strength from? (a) tubes (b) arches and domes (c) triangles
5. 5.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) False (b) True
6. 6.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it wet (c) folds add glue (d) folds make it stiffer
7. 7.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the gap between books (b) the shape of the paper (c) the kind of paper (d) the kind of coins
8. 8.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we keep it the same (b) we measure it (c) we change it
9. 9.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) arches and domes (c) triangles
10. 10.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the heart shape (c) the star (d) the triangle
11. 11.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) only water (c) the same coins (d) more coins
12. 12.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a magnet (c) sheets of paper (d) coins
13. 13.True or false: a bridge truss gets its strength from arches or domes. (a) False (b) True
14. 14.🔍 Which is the odd one out? (a) rolled paper tubes (b) a torn flat sheet (c) one flat sheet (d) a flat tissue
15. 15.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
16. 16.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a balloon (c) yeast (d) a ruler
17. 17.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we keep it the same (c) we change it
18. 18.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a roof frame (c) an eggshell (d) a round pillar
19. 19.⚖️ 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
20. 20.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) low and steady (d) high and wobbly
21. 21.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a zigzag-folded sheet (c) a torn flat sheet (d) one flat sheet
22. 22.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of paper (b) coins it holds (c) the shape of the paper
23. 23.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
24. 24.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) two books (d) a balloon
25. 25.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) one flat sheet (d) paper with folded edges
26. 26.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) not at all (c) upward (d) more
27. 27.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
28. 28.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) rub your eyes (c) lick your fingers (d) wash your hands
29. 29.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
30. 30.True or false: an old stone bridge gets its strength from arches or domes. (a) False (b) True
31. 31.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) yeast (d) two books
32. 32.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
33. 33.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
34. 34.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
35. 35.True or false: a flat tissue makes a weak bridge. (a) False (b) True
36. 36.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) paper with folded edges (c) a U-shaped channel (d) a wet flat sheet
37. 37.⚖️ 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
38. 38.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) coins (c) a battery cell (d) yeast
39. 39.🔍 Which is the odd one out? (a) a torn flat sheet (b) a flat tissue (c) a U-shaped channel (d) a wet flat sheet
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) a battery cell (d) sheets of paper

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