Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 202 · 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? What do we do with “where coins are placed”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
3. 3.True or false: a hollow bird bone gets its strength from a tube shape. (a) False (b) True
4. 4.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) triangles (c) tubes
5. 5.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
6. 6.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we change it (c) we keep it the same
7. 7.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) less (c) not at all (d) more
8. 8.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) sheets of paper (c) a balloon (d) a battery cell
9. 9.True or false: a flat tissue makes a weak bridge. (a) True (b) False
10. 10.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) where coins are placed (c) the shape of the paper (d) coins it holds
11. 11.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
12. 12.⚖️ 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 keep it the same (c) we change it
13. 13.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) more coins (c) fewer coins (d) the same coins
14. 14.🥚 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
15. 15.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a round pillar (c) a hollow bird bone (d) a temple dome
16. 16.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
17. 17.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a magnet (c) a mirror (d) coins
18. 18.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) two books (c) a balloon (d) a mirror
19. 19.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
20. 20.🔍 Which is the odd one out? (a) a U-shaped channel (b) a torn flat sheet (c) a wet flat sheet (d) one flat sheet
21. 21.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
22. 22.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
23. 23.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) a mirror (d) two books
24. 24.True or false: a balloon is needed for the paper bridge. (a) True (b) False
25. 25.🛟 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
26. 26.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we change it (c) we keep it the same
27. 27.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) wash your hands (c) lick your fingers (d) skip washing
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 balloon
29. 29.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the square (c) the heart shape (d) the star
30. 30.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) tubes (c) triangles
31. 31.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
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.🏗️ Where does a roof frame get its strength from? (a) triangles (b) tubes (c) arches and domes
34. 34.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
35. 35.🔍 Which is the odd one out? (a) rolled paper tubes (b) a zigzag-folded sheet (c) one flat sheet (d) a U-shaped channel
36. 36.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) where coins are placed (c) the shape of the paper
37. 37.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) paper with folded edges (c) a flat tissue (d) one flat sheet
38. 38.True or false: a round pillar gets its strength from triangles. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) a torn flat sheet (d) a U-shaped channel
40. 40.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) more (c) the same number of (d) zero

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