Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 320 · 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: two books is needed for the paper bridge. (a) True (b) False
2. 2.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
3. 3.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it stiffer (c) folds make it wet (d) folds add glue
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) a magnet (d) coins
5. 5.True or false: a ruler is needed for the paper bridge. (a) False (b) True
6. 6.True or false: a battery cell is needed for the paper bridge. (a) False (b) True
7. 7.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
8. 8.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) the same number of (c) zero (d) fewer
9. 9.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
10. 10.🧺 Which of these is not needed for the paper bridge? (a) a battery cell (b) sheets of paper (c) two books (d) a ruler
11. 11.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) True (b) False
12. 12.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a bridge truss (c) an electric tower (d) a hollow bird bone
13. 13.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) rolled paper tubes (d) one flat sheet
14. 14.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) a roof frame (c) an electric tower (d) an old stone bridge
15. 15.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) paper with folded edges (c) rolled paper tubes (d) a zigzag-folded sheet
16. 16.True or false: a magnet is not needed for the paper bridge. (a) True (b) False
17. 17.⚖️ 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) the kind of coins
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) yeast (d) a ruler
19. 19.True or false: a round pillar gets its strength from triangles. (a) True (b) False
20. 20.🧺 Which of these is not needed for the paper bridge? (a) a balloon (b) sheets of paper (c) two books (d) coins
21. 21.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) one flat sheet (d) paper with folded edges
22. 22.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we keep it the same (c) we change it
23. 23.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) tubes (c) triangles
24. 24.True or false: a battery cell is not needed for the paper bridge. (a) True (b) False
25. 25.🏗️ Where does a temple dome get its strength from? (a) arches and domes (b) tubes (c) triangles
26. 26.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) tubes (c) triangles
27. 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a mirror (c) coins (d) sheets of paper
28. 28.🌉 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
29. 29.🔍 Which is the odd one out? (a) paper with folded edges (b) one flat sheet (c) a zigzag-folded sheet (d) a U-shaped channel
30. 30.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (a) False (b) True
31. 31.⚖️ 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 change it (c) we measure it
32. 32.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
33. 33.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it sags and falls (c) it gets stronger (d) it floats up
34. 34.True or false: a bamboo pole gets its strength from triangles. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a flat tissue (c) rolled paper tubes (d) a U-shaped channel
36. 36.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) coins (c) a magnet (d) two books
37. 37.True or false: a balloon is not needed for the paper bridge. (a) True (b) False
38. 38.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
39. 39.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is made of steel (c) its curved arch shape (d) it is very hot
40. 40.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) a mirror (d) coins

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