Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 277 · 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.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) paper with folded edges (c) a wet flat sheet (d) rolled paper tubes
2. 2.⚖️ 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
3. 3.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a ruler (d) yeast
5. 5.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) less (c) more (d) not at all
6. 6.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) False (b) True
7. 7.🧺 Which of these is not needed for the paper bridge? (a) a magnet (b) coins (c) a ruler (d) two books
8. 8.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
9. 9.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
10. 10.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) an electric tower (c) a temple dome (d) an eggshell
11. 11.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a battery cell (c) a mirror (d) sheets of paper
12. 12.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the kind of paper (c) coins it holds
13. 13.⚖️ 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) the kind of coins
14. 14.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) only water (c) fewer coins (d) the same coins
15. 15.🔍 Which is the odd one out? (a) a U-shaped channel (b) a zigzag-folded sheet (c) a torn flat sheet (d) paper with folded edges
16. 16.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we measure it (b) we change it (c) we keep it the same
17. 17.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) lick your fingers (d) wash your hands
18. 18.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) one flat sheet (c) a U-shaped channel (d) paper with folded edges
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) turmeric powder (c) sheets of paper (d) coins
20. 20.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a mirror (c) a ruler (d) two books
21. 21.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
22. 22.True or false: a roof frame gets its strength from arches or domes. (a) False (b) True
23. 23.True or false: coins is needed for the paper bridge. (a) True (b) False
24. 24.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we measure it (c) we keep it the same
25. 25.True or false: a U-shaped channel makes a strong bridge. (a) True (b) False
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) a balloon (d) coins
27. 27.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
28. 28.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) one flat sheet (b) a torn flat sheet (c) a flat tissue (d) a zigzag-folded sheet
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 gets stronger (d) it sags and falls
31. 31.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
32. 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) a mirror (d) sheets of paper
33. 33.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a wet flat sheet (c) a torn flat sheet (d) a zigzag-folded sheet
34. 34.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) a U-shaped channel (d) a torn flat sheet
35. 35.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
36. 36.True or false: a mirror is needed for the paper bridge. (a) True (b) False
37. 37.🏗️ Where does a roof frame get its strength from? (a) triangles (b) arches and domes (c) tubes
38. 38.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
39. 39.True or false: a magnet is needed for the paper bridge. (a) False (b) True
40. 40.True or false: an electric tower gets its strength from triangles. (a) True (b) False

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