Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 180 · 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.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
2. 2.🧺 Which of these is not needed for the paper bridge? (a) a magnet (b) two books (c) a ruler (d) coins
3. 3.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a bamboo pole (c) a bridge truss (d) an old stone bridge
4. 4.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) zero (c) fewer (d) the same number of
5. 5.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a temple dome (c) an eggshell (d) a roof frame
6. 6.🔍 Which is the odd one out? (a) a torn flat sheet (b) a U-shaped channel (c) a flat tissue (d) a wet flat sheet
7. 7.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a magnet (c) two books (d) a ruler
8. 8.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
9. 9.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) its curved arch shape (c) it is made of steel (d) it is very hot
10. 10.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) two books (c) a magnet (d) yeast
11. 11.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a flat tissue (d) a zigzag-folded sheet
12. 12.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) False (b) True
13. 13.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) low and steady (c) high and wobbly (d) on top of a pet
14. 14.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
15. 15.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
16. 16.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
17. 17.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) coins (d) a battery cell
19. 19.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the shape of the paper (c) the gap between books (d) the kind of coins
20. 20.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it turns to card (c) it floats up (d) it sags and falls
21. 21.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True
22. 22.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) triangles (c) tubes
23. 23.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a mirror (c) sheets of paper (d) two books
24. 24.🏗️ Where does a temple dome get its strength from? (a) triangles (b) arches and domes (c) tubes
25. 25.🔺 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
26. 26.🧺 Which of these is not needed for the paper bridge? (a) coins (b) two books (c) a battery cell (d) a ruler
27. 27.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
28. 28.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) upward (c) not at all (d) more
29. 29.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) the kind of coins
30. 30.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a torn flat sheet (c) a zigzag-folded sheet (d) a U-shaped channel
31. 31.⚖️ 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
32. 32.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a battery cell (c) a balloon (d) coins
33. 33.⚖️ 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
34. 34.True or false: two books is not needed for the paper bridge. (a) False (b) True
35. 35.True or false: a temple dome gets its strength from a tube shape. (a) True (b) False
36. 36.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a flat tissue (d) paper with folded edges
37. 37.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) False (b) True
38. 38.⚖️ 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
39. 39.True or false: an eggshell gets its strength from arches or domes. (a) True (b) False
40. 40.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) rolled paper tubes (d) a torn flat sheet

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