Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 948 · 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 of these is needed for the paper bridge? (a) turmeric powder (b) yeast (c) a magnet (d) sheets of paper
2. 2.🏗️ Where does a round pillar get its strength from? (a) triangles (b) arches and domes (c) tubes
3. 3.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
4. 4.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) False (b) True
5. 5.🔍 Which is the odd one out? (a) a wet flat sheet (b) a torn flat sheet (c) a U-shaped channel (d) one flat sheet
6. 6.🏗️ Where does an eggshell get its strength from? (a) triangles (b) tubes (c) arches and domes
7. 7.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
8. 8.True or false: a round pillar gets its strength from arches or domes. (a) False (b) True
9. 9.True or false: a ruler is needed for the paper bridge. (a) False (b) True
10. 10.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is the one thing we change. (a) True (b) False
11. 11.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) one flat sheet (c) a U-shaped channel (d) a zigzag-folded sheet
12. 12.⚖️ 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
13. 13.🛟 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
14. 14.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) rolled paper tubes (c) a wet flat sheet (d) one flat sheet
15. 15.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) the gap between books
16. 16.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) yeast (d) two books
17. 17.🔍 Which is the odd one out? (a) paper with folded edges (b) one flat sheet (c) rolled paper tubes (d) a zigzag-folded sheet
18. 18.🔍 Which is the odd one out? (a) a U-shaped channel (b) a flat tissue (c) paper with folded edges (d) rolled paper tubes
19. 19.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) a ruler (c) coins (d) sheets of paper
21. 21.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a zigzag-folded sheet (c) a wet flat sheet (d) a flat tissue
22. 22.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a magnet (c) turmeric powder (d) two books
23. 23.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) its curved arch shape (c) it is magnetic (d) it is made of steel
24. 24.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) triangles (c) arches and domes
25. 25.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) upward (c) not at all (d) more
26. 26.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a zigzag-folded sheet (c) paper with folded edges (d) a wet flat sheet
27. 27.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) wash your hands (c) rub your eyes (d) lick your fingers
28. 28.🏗️ Which of these gets its strength from a tube shape? (a) a bamboo pole (b) an old stone bridge (c) a bridge truss (d) an eggshell
29. 29.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) fewer coins (c) the same coins (d) more coins
30. 30.True or false: two books is not needed for the paper bridge. (a) True (b) False
31. 31.True or false: an old stone bridge gets its strength from triangles. (a) True (b) False
32. 32.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
33. 33.True or false: one flat sheet makes a weak bridge. (a) True (b) False
34. 34.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a zigzag-folded sheet (c) a torn flat sheet (d) rolled paper tubes
35. 35.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
36. 36.⚖️ 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 gap between books (d) where coins are placed
37. 37.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
38. 38.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) False (b) True
40. 40.True or false: a magnet is needed for the paper bridge. (a) True (b) False

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