Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 531 · 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.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the heart shape (c) the triangle (d) the square
2. 2.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a torn flat sheet (d) paper with folded edges
3. 3.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a battery cell (c) two books (d) a balloon
4. 4.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
5. 5.🏗️ Which of these gets its strength from a tube shape? (a) a bamboo pole (b) a temple dome (c) a roof frame (d) a bridge truss
6. 6.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is magnetic (c) its curved arch shape (d) it is very hot
7. 7.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) paper with folded edges (b) a zigzag-folded sheet (c) a wet flat sheet (d) rolled paper tubes
9. 9.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the shape of the paper (b) the kind of coins (c) the kind of paper (d) coins it holds
10. 10.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) on a stool edge (c) high and wobbly (d) low and steady
11. 11.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) triangles (c) tubes
12. 12.🌉 Which of these makes a weak bridge? (a) a torn flat sheet (b) a zigzag-folded sheet (c) rolled paper tubes (d) paper with folded edges
13. 13.⚖️ 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 kind of paper (d) the gap between books
14. 14.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) lick your fingers (c) skip washing (d) rub your eyes
15. 15.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
16. 16.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a balloon (c) coins (d) two books
17. 17.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
18. 18.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) an electric tower (c) a temple dome (d) a round pillar
19. 19.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we measure it (c) we change it
20. 20.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
21. 21.⚖️ 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
22. 22.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) fewer coins (d) more coins
23. 23.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
24. 24.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) coins (c) a battery cell (d) turmeric powder
25. 25.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) True (b) False
26. 26.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
27. 27.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a round pillar (c) a bridge truss (d) an eggshell
28. 28.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) arches and domes (c) tubes
29. 29.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
30. 30.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
31. 31.True or false: a round pillar gets its strength from a tube shape. (a) True (b) False
32. 32.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a torn flat sheet (c) rolled paper tubes (d) one flat sheet
33. 33.True or false: a battery cell is not needed for the paper bridge. (a) True (b) False
34. 34.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
35. 35.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
36. 36.⚖️ 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
37. 37.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
38. 38.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
39. 39.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
40. 40.True or false: yeast is needed for the paper bridge. (a) False (b) True

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