Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 441 · 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: paper with folded edges makes a strong bridge. (a) False (b) True
2. 2.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) zero (d) the same number of
3. 3.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
4. 4.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) high and wobbly (c) on a stool edge (d) low and steady
5. 5.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) an old stone bridge (c) a bamboo pole (d) an eggshell
6. 6.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) tubes (c) triangles
7. 7.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
8. 8.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
9. 9.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is magnetic (c) it is very hot (d) it is made of steel
10. 10.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
11. 11.🧺 Which of these is needed for the paper bridge? (a) two books (b) a magnet (c) yeast (d) turmeric powder
12. 12.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the triangle (c) the heart shape (d) the square
13. 13.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we measure it (b) we change it (c) we keep it the same
14. 14.True or false: coins is not needed for the paper bridge. (a) True (b) False
15. 15.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) a magnet (d) sheets of paper
16. 16.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) False (b) True
17. 17.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
18. 18.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
19. 19.🏗️ Where does a temple dome get its strength from? (a) tubes (b) arches and domes (c) triangles
20. 20.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a round pillar (c) an eggshell (d) an electric tower
21. 21.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
22. 22.True or false: a battery cell is needed for the paper bridge. (a) False (b) True
23. 23.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) two books (d) turmeric powder
24. 24.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a ruler (c) a mirror (d) yeast
25. 25.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) where coins are placed
26. 26.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) tubes (c) arches and domes
27. 27.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) an eggshell (c) a bridge truss (d) a bamboo pole
28. 28.🌉 Which of these makes a strong bridge? (a) rolled paper tubes (b) one flat sheet (c) a wet flat sheet (d) a torn flat sheet
29. 29.🌉 Which of these makes a strong bridge? (a) a zigzag-folded sheet (b) one flat sheet (c) a torn flat sheet (d) a wet flat sheet
30. 30.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) arches and domes (c) triangles
31. 31.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we keep it the same (b) we measure it (c) we change it
32. 32.True or false: a mirror is not needed for the paper bridge. (a) True (b) False
33. 33.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we change it (c) we keep it the same
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) True (b) False
35. 35.True or false: a temple dome gets its strength from arches or domes. (a) False (b) True
36. 36.True or false: a wet flat sheet makes a weak bridge. (a) True (b) False
37. 37.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) not at all (c) less (d) more
38. 38.🔍 Which is the odd one out? (a) paper with folded edges (b) a zigzag-folded sheet (c) one flat sheet (d) rolled paper tubes
39. 39.True or false: coins is needed for the paper bridge. (a) False (b) True
40. 40.True or false: two books is not needed for the paper bridge. (a) False (b) True

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