Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 970 · 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 triangle (b) the star (c) the heart shape (d) the square
2. 2.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we keep it the same (c) we change it
3. 3.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
4. 4.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) a temple dome (c) a roof frame (d) an old stone bridge
5. 5.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) paper with folded edges (c) one flat sheet (d) a zigzag-folded sheet
6. 6.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
7. 7.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we keep it the same (c) we measure it
8. 8.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) lick your fingers (c) skip washing (d) wash your hands
9. 9.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
10. 10.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
11. 11.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) not at all (c) more (d) upward
12. 12.True or false: an old stone bridge gets its strength from a tube shape. (a) False (b) True
13. 13.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a flat tissue (c) rolled paper tubes (d) a U-shaped channel
14. 14.🔍 Which is the odd one out? (a) a flat tissue (b) a wet flat sheet (c) one flat sheet (d) rolled paper tubes
15. 15.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
16. 16.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) paper with folded edges (c) a zigzag-folded sheet (d) a flat tissue
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) False (b) True
18. 18.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) triangles (c) arches and domes
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) turmeric powder (c) a ruler (d) two books
20. 20.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) low and steady (c) on top of a pet (d) on a stool edge
21. 21.⚖️ 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
22. 22.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
23. 23.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) yeast (c) coins (d) a ruler
24. 24.🧺 Which of these is needed for the paper bridge? (a) two books (b) yeast (c) turmeric powder (d) a balloon
25. 25.🌉 Which of these makes a strong bridge? (a) rolled paper tubes (b) one flat sheet (c) a wet flat sheet (d) a flat tissue
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) coins (c) sheets of paper (d) two books
27. 27.True or false: a ruler 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 kept the same? (a) the kind of coins (b) the shape of the paper (c) coins it holds
29. 29.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a wet flat sheet (c) rolled paper tubes (d) paper with folded edges
30. 30.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a bridge truss (c) a temple dome (d) a round pillar
31. 31.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a wet flat sheet (c) a torn flat sheet (d) a zigzag-folded sheet
32. 32.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) only water (c) fewer coins (d) the same coins
33. 33.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is very hot (c) it is made of steel (d) it is magnetic
34. 34.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) paper with folded edges (d) a torn flat sheet
35. 35.🏗️ Where does a round pillar get its strength from? (a) tubes (b) arches and domes (c) triangles
36. 36.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
37. 37.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a U-shaped channel (c) a wet flat sheet (d) one flat sheet
38. 38.⚖️ 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
39. 39.⚖️ 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 change it (c) we measure it
40. 40.True or false: turmeric powder is not needed for the paper bridge. (a) True (b) False

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