Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 882 · 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: a flat tissue makes a weak bridge. (a) True (b) False
2. 2.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
3. 3.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we keep it the same (c) we measure it
4. 4.True or false: a wet flat sheet makes a weak bridge. (a) True (b) False
5. 5.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a ruler (c) two books (d) a balloon
6. 6.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) yeast (c) turmeric powder (d) a ruler
7. 7.⚖️ 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 change it (c) we measure it
8. 8.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) wash your hands (c) rub your eyes (d) skip washing
9. 9.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is made of steel (c) it is magnetic (d) it is very hot
10. 10.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
11. 11.True or false: a roof frame gets its strength from a tube shape. (a) False (b) True
12. 12.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) low and steady (c) on a stool edge (d) on top of a pet
13. 13.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it sags and falls (c) it turns to card (d) it gets stronger
14. 14.True or false: one flat sheet makes a weak bridge. (a) False (b) True
15. 15.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) a temple dome (c) an old stone bridge (d) an eggshell
16. 16.⚖️ 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
17. 17.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) coins it holds (c) the shape of the paper (d) where coins are placed
18. 18.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) a hollow bird bone (c) an old stone bridge (d) an electric tower
19. 19.⚖️ 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
20. 20.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
21. 21.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) an electric tower (c) a temple dome (d) a bamboo pole
22. 22.True or false: an eggshell gets its strength from triangles. (a) False (b) True
23. 23.True or false: a temple dome gets its strength from triangles. (a) True (b) False
24. 24.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) the same number of (d) more
25. 25.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) two books (d) a battery cell
26. 26.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the heart shape (c) the star (d) the square
27. 27.True or false: a mirror is needed for the paper bridge. (a) False (b) True
28. 28.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) the kind of coins (c) coins it holds (d) where coins are placed
29. 29.True or false: one flat sheet makes a strong bridge. (a) True (b) False
30. 30.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds add glue (c) folds are magnetic (d) folds make it wet
31. 31.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
32. 32.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
33. 33.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) a round pillar (c) a hollow bird bone (d) a temple dome
34. 34.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we keep it the same (c) we change it
35. 35.🏗️ Where does a temple dome get its strength from? (a) triangles (b) arches and domes (c) tubes
36. 36.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) a wet flat sheet (d) paper with folded edges
37. 37.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
38. 38.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) one flat sheet (d) a U-shaped channel
39. 39.True or false: yeast is not needed for the paper bridge. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) a U-shaped channel (b) a zigzag-folded sheet (c) rolled paper tubes (d) a flat tissue

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