Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 298 · 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 torn flat sheet makes a strong bridge. (a) False (b) True
2. 2.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) only water (c) the same coins (d) more coins
3. 3.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) sheets of paper (d) a magnet
4. 4.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
5. 5.True or false: an electric tower gets its strength from a tube shape. (a) False (b) True
6. 6.True or false: a ruler is needed for the paper bridge. (a) True (b) False
7. 7.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) turmeric powder (c) a balloon (d) a ruler
8. 8.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
9. 9.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) coins it holds (c) the kind of coins (d) the gap between books
10. 10.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
11. 11.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds add glue (c) folds are magnetic (d) folds make it wet
12. 12.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) True (b) False
13. 13.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) a hollow bird bone (c) a temple dome (d) a bridge truss
14. 14.🔍 Which is the odd one out? (a) rolled paper tubes (b) paper with folded edges (c) a U-shaped channel (d) a wet flat sheet
15. 15.True or false: a magnet is needed for the paper bridge. (a) False (b) True
16. 16.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
17. 17.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) triangles (c) arches and domes
18. 18.🔍 Which is the odd one out? (a) one flat sheet (b) a U-shaped channel (c) a flat tissue (d) a torn flat sheet
19. 19.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
20. 20.⚖️ 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
21. 21.True or false: a bamboo pole gets its strength from triangles. (a) False (b) True
22. 22.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we keep it the same (c) we measure it
23. 23.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) rolled paper tubes (c) a torn flat sheet (d) one flat sheet
24. 24.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) the same number of (c) more (d) fewer
25. 25.True or false: yeast is needed for the paper bridge. (a) True (b) False
26. 26.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) on a stool edge (c) high and wobbly (d) low and steady
27. 27.🔍 Which is the odd one out? (a) a U-shaped channel (b) a zigzag-folded sheet (c) paper with folded edges (d) a flat tissue
28. 28.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) one flat sheet (c) a flat tissue (d) paper with folded edges
29. 29.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
30. 30.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it floats up (c) it sags and falls (d) it gets stronger
31. 31.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
32. 32.True or false: a round pillar gets its strength from a tube shape. (a) True (b) False
33. 33.⚖️ 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
34. 34.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
35. 35.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) less (c) more (d) upward
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 keep it the same (c) we change it
37. 37.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
38. 38.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) turmeric powder (c) yeast (d) two books
39. 39.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) lick your fingers (c) rub your eyes (d) wash your hands
40. 40.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) tubes (c) triangles

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