Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 880 · 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.⚖️ 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
2. 2.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) more (c) upward (d) not at all
3. 3.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the triangle (c) the star (d) the heart shape
4. 4.True or false: a magnet is not needed for the paper bridge. (a) True (b) False
5. 5.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) a magnet (d) sheets of paper
7. 7.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
8. 8.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) a magnet (d) a ruler
9. 9.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) rolled paper tubes (d) a wet flat sheet
10. 10.True or false: a wet flat sheet makes a weak bridge. (a) True (b) False
11. 11.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds make it stiffer (c) folds are magnetic (d) folds add glue
12. 12.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) the gap between books (c) the shape of the paper (d) where coins are placed
13. 13.🔍 Which is the odd one out? (a) a wet flat sheet (b) a flat tissue (c) a zigzag-folded sheet (d) a torn flat sheet
14. 14.True or false: an electric tower gets its strength from triangles. (a) False (b) True
15. 15.True or false: coins is not needed for the paper bridge. (a) False (b) True
16. 16.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
17. 17.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) only water (d) fewer coins
18. 18.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) the same number of (c) fewer (d) more
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) yeast (c) two books (d) sheets of paper
20. 20.⚖️ 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
21. 21.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) rolled paper tubes (c) a zigzag-folded sheet (d) a torn flat sheet
22. 22.🌉 Which of these makes a strong bridge? (a) a U-shaped channel (b) a flat tissue (c) a torn flat sheet (d) one flat sheet
23. 23.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we measure it (c) we change it
24. 24.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) a bridge truss (c) an old stone bridge (d) a roof frame
25. 25.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) on a stool edge (d) low and steady
26. 26.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) skip washing (c) rub your eyes (d) lick your fingers
27. 27.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) yeast (c) a battery cell (d) two books
28. 28.🔍 Which is the odd one out? (a) one flat sheet (b) paper with folded edges (c) a zigzag-folded sheet (d) a U-shaped channel
29. 29.🔍 Which is the odd one out? (a) one flat sheet (b) a torn flat sheet (c) a flat tissue (d) a U-shaped channel
30. 30.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) coins (c) sheets of paper (d) a battery cell
31. 31.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
32. 32.🔍 Which is the odd one out? (a) a wet flat sheet (b) paper with folded edges (c) rolled paper tubes (d) a U-shaped channel
33. 33.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
34. 34.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
35. 35.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True
36. 36.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) the kind of paper
37. 37.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
38. 38.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) arches and domes (c) triangles
39. 39.🔍 Which is the odd one out? (a) paper with folded edges (b) a flat tissue (c) a zigzag-folded sheet (d) rolled paper tubes
40. 40.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) where coins are placed

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