Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 999 · 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.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) the same number of (d) zero
2. 2.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a roof frame (c) a temple dome (d) a hollow bird bone
3. 3.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) a ruler (d) a balloon
4. 4.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) on top of a pet (d) low and steady
5. 5.True or false: a flat tissue makes a strong bridge. (a) False (b) True
6. 6.⚖️ 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
7. 7.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) two books (c) sheets of paper (d) a ruler
8. 8.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the star (c) the heart shape (d) the triangle
9. 9.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
10. 10.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
11. 11.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is very hot (c) its curved arch shape (d) it is made of steel
12. 12.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a magnet (c) a balloon (d) a ruler
13. 13.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) sheets of paper (c) coins (d) two books
14. 14.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) tubes (c) triangles
15. 15.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
16. 16.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
17. 17.True or false: a hollow bird bone gets its strength from a tube shape. (a) False (b) True
18. 18.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) yeast (d) two books
19. 19.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) a U-shaped channel (c) a zigzag-folded sheet (d) rolled paper tubes
20. 20.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) an old stone bridge (c) a bridge truss (d) a round pillar
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) a battery cell (d) sheets of paper
22. 22.True or false: a zigzag-folded sheet makes a strong bridge. (a) True (b) False
23. 23.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
24. 24.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) a balloon (d) a ruler
25. 25.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
26. 26.🏗️ Which of these gets its strength from triangles? (a) an electric tower (b) an old stone bridge (c) a temple dome (d) a hollow bird bone
27. 27.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
28. 28.True or false: paper with folded edges makes a weak bridge. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) one flat sheet (b) a flat tissue (c) a wet flat sheet (d) a zigzag-folded sheet
30. 30.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) a U-shaped channel (d) a torn flat sheet
31. 31.🔍 Which is the odd one out? (a) paper with folded edges (b) a wet flat sheet (c) rolled paper tubes (d) a zigzag-folded sheet
32. 32.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
33. 33.⚖️ 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 measure it (c) we change it
34. 34.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) an eggshell (c) a roof frame (d) a hollow bird bone
35. 35.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we keep it the same (c) we change it
36. 36.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a mirror (c) two books (d) a magnet
37. 37.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we keep it the same (b) we measure it (c) we change it
38. 38.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) the kind of paper (c) coins it holds (d) the kind of coins
39. 39.🏗️ Where does a round pillar get its strength from? (a) tubes (b) arches and domes (c) triangles
40. 40.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) coins (c) a magnet (d) a balloon

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