Paper Bridge STEM Challenge Worksheet

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

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