Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 618 · 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.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
2. 2.🌉 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
3. 3.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
4. 4.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
5. 5.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a U-shaped channel (c) a torn flat sheet (d) a flat tissue
6. 6.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we change it (c) we keep it the same
7. 7.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
8. 8.True or false: a round pillar gets its strength from a tube shape. (a) False (b) True
9. 9.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) the kind of coins (c) coins it holds (d) the gap between books
10. 10.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
11. 11.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) a mirror (d) sheets of paper
13. 13.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) coins it holds (c) the shape of the paper (d) where coins are placed
14. 14.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
15. 15.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) rolled paper tubes (d) a torn flat sheet
17. 17.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) the same number of (d) zero
18. 18.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) arches and domes (c) tubes
19. 19.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the star (c) the heart shape (d) the square
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) coins (c) a ruler (d) two books
21. 21.🌉 Which of these makes a strong bridge? (a) rolled paper tubes (b) a flat tissue (c) a wet flat sheet (d) a torn flat sheet
22. 22.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of paper (b) the shape of the paper (c) coins it holds
23. 23.⚖️ 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
24. 24.🌉 Which of these makes a weak bridge? (a) a torn flat sheet (b) paper with folded edges (c) a zigzag-folded sheet (d) a U-shaped channel
25. 25.🏗️ Which of these gets its strength from arches or domes? (a) an old stone bridge (b) a round pillar (c) a bridge truss (d) a bamboo pole
26. 26.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we change it (c) we keep it the same
27. 27.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
28. 28.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a balloon (c) two books (d) sheets of paper
29. 29.True or false: a roof frame gets its strength from a tube shape. (a) False (b) True
30. 30.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a round pillar (c) a temple dome (d) an electric tower
31. 31.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
32. 32.True or false: a round pillar gets its strength from triangles. (a) True (b) False
33. 33.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
34. 34.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) high and wobbly (c) on top of a pet (d) on a stool edge
35. 35.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) True (b) False
36. 36.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) its curved arch shape (c) it is magnetic (d) it is very hot
37. 37.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
38. 38.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) an eggshell (c) a bamboo pole (d) a hollow bird bone
39. 39.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a torn flat sheet (c) a flat tissue (d) paper with folded edges
40. 40.True or false: a roof frame gets its strength from triangles. (a) False (b) True

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