Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 177 · 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.🛟 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
2. 2.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a round pillar (c) a temple dome (d) an electric tower
3. 3.True or false: an eggshell gets its strength from arches or domes. (a) True (b) False
4. 4.⚖️ 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) the kind of coins
5. 5.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) yeast (c) a balloon (d) a ruler
6. 6.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
7. 7.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) lick your fingers (c) wash your hands (d) rub your eyes
8. 8.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
9. 9.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) zero (c) the same number of (d) fewer
10. 10.🔍 Which is the odd one out? (a) rolled paper tubes (b) a wet flat sheet (c) a flat tissue (d) a torn flat sheet
11. 11.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) a magnet (d) coins
12. 12.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
13. 13.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
14. 14.⚖️ 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 gap between books (c) the kind of paper (d) where coins are placed
15. 15.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
16. 16.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a ruler (c) turmeric powder (d) sheets of paper
17. 17.True or false: a roof frame gets its strength from a tube shape. (a) True (b) False
18. 18.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
19. 19.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) two books (d) yeast
20. 20.🏗️ Where does an electric tower get its strength from? (a) tubes (b) triangles (c) arches and domes
21. 21.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) two books (c) a battery cell (d) sheets of paper
22. 22.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds are magnetic (c) folds make it wet (d) folds add glue
23. 23.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a wet flat sheet (c) a torn flat sheet (d) a flat tissue
24. 24.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) sheets of paper (c) two books (d) coins
25. 25.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) tubes (c) triangles
26. 26.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
27. 27.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we keep it the same (b) we change it (c) we measure it
28. 28.🔍 Which is the odd one out? (a) a flat tissue (b) a U-shaped channel (c) a wet flat sheet (d) a torn flat sheet
29. 29.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
30. 30.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) rolled paper tubes (c) a torn flat sheet (d) a flat tissue
31. 31.🏗️ Which of these gets its strength from a tube shape? (a) a round pillar (b) a roof frame (c) an old stone bridge (d) a bridge truss
32. 32.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it floats up (c) it turns to card (d) it gets stronger
33. 33.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a balloon (c) coins (d) sheets of paper
34. 34.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) an old stone bridge (c) a bridge truss (d) a roof frame
35. 35.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
36. 36.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a flat tissue (c) rolled paper tubes (d) a zigzag-folded sheet
37. 37.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) upward (c) less (d) not at all
38. 38.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we keep it the same (c) we measure it
39. 39.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
40. 40.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) where coins are placed (b) coins it holds (c) the shape of the paper

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