Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 740 · 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.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it floats up (c) it turns to card (d) it sags and falls
2. 2.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
3. 3.🔍 Which is the odd one out? (a) a U-shaped channel (b) a wet flat sheet (c) paper with folded edges (d) a zigzag-folded sheet
4. 4.True or false: a balloon is needed for the paper bridge. (a) False (b) True
5. 5.🏗️ Which of these gets its strength from a tube shape? (a) a hollow bird bone (b) an eggshell (c) a bridge truss (d) an electric tower
6. 6.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the gap between books (c) coins it holds
7. 7.🌉 Does a U-shaped channel 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) coins (b) sheets of paper (c) a mirror (d) a ruler
9. 9.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
10. 10.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) arches and domes (c) tubes
11. 11.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we keep it the same (c) we measure it
12. 12.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) False (b) True
13. 13.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) sheets of paper (c) two books (d) a ruler
14. 14.True or false: a temple dome gets its strength from a tube shape. (a) True (b) False
15. 15.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
16. 16.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) only water (d) fewer coins
17. 17.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a mirror (c) coins (d) yeast
18. 18.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False
19. 19.True or false: coins is not needed for the paper bridge. (a) True (b) False
20. 20.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is made of steel (c) it is magnetic (d) it is very hot
21. 21.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) True (b) False
22. 22.🌉 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
23. 23.True or false: a flat tissue makes a strong bridge. (a) False (b) True
24. 24.🧺 Which of these is not needed for the paper bridge? (a) yeast (b) a ruler (c) sheets of paper (d) coins
25. 25.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we measure it (c) we keep it the same
26. 26.True or false: a hollow bird bone gets its strength from arches or domes. (a) False (b) True
27. 27.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) low and steady (d) high and wobbly
28. 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) two books (d) a battery cell
29. 29.True or false: a battery cell is needed for the paper bridge. (a) False (b) True
30. 30.True or false: turmeric powder is not needed for the paper bridge. (a) True (b) False
31. 31.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the star (c) the triangle (d) the square
32. 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) two books (d) a magnet
33. 33.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) one flat sheet (b) a U-shaped channel (c) a torn flat sheet (d) a wet flat sheet
35. 35.True or false: two books is needed for the paper bridge. (a) False (b) True
36. 36.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we keep it the same (c) we measure it
37. 37.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
38. 38.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) tubes (c) triangles
39. 39.True or false: an eggshell gets its strength from a tube shape. (a) True (b) False
40. 40.True or false: a roof frame gets its strength from arches or domes. (a) False (b) True

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