Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 876 · 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.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) tubes (c) triangles
2. 2.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) two books (c) a ruler (d) coins
3. 3.⚖️ 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
4. 4.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) only water (c) more coins (d) fewer coins
5. 5.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is very hot (c) its curved arch shape (d) it is magnetic
6. 6.🛟 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
7. 7.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a temple dome (c) a round pillar (d) a roof frame
8. 8.True or false: a balloon is needed for the paper bridge. (a) True (b) False
9. 9.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) True (b) False
10. 10.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) the shape of the paper (c) the kind of paper (d) the gap between books
11. 11.🔍 Which is the odd one out? (a) a U-shaped channel (b) paper with folded edges (c) one flat sheet (d) a zigzag-folded sheet
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) yeast (d) sheets of paper
13. 13.🏗️ Where does an eggshell get its strength from? (a) tubes (b) triangles (c) arches and domes
14. 14.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
15. 15.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
16. 16.True or false: a roof frame gets its strength from a tube shape. (a) True (b) False
17. 17.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a U-shaped channel (c) one flat sheet (d) a wet flat sheet
18. 18.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
19. 19.🧺 Which of these is not needed for the paper bridge? (a) coins (b) two books (c) yeast (d) sheets of paper
20. 20.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
21. 21.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a battery cell (c) sheets of paper (d) two books
23. 23.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) a wet flat sheet (b) paper with folded edges (c) a U-shaped channel (d) a zigzag-folded sheet
25. 25.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) triangles (c) tubes
26. 26.True or false: a bamboo pole gets its strength from arches or domes. (a) False (b) True
27. 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) a ruler (c) two books (d) sheets of paper
28. 28.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it floats up (c) it sags and falls (d) it turns to card
29. 29.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) an electric tower (c) a bridge truss (d) an old stone bridge
30. 30.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a balloon (c) a ruler (d) coins
31. 31.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
32. 32.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a roof frame (c) a temple dome (d) a hollow bird bone
33. 33.True or false: a round pillar gets its strength from triangles. (a) False (b) True
34. 34.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a zigzag-folded sheet (c) a wet flat sheet (d) a torn flat sheet
35. 35.🛟 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
36. 36.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) sheets of paper (c) a ruler (d) coins
37. 37.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a magnet (c) sheets of paper (d) a ruler
38. 38.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) paper with folded edges (c) rolled paper tubes (d) a zigzag-folded sheet
39. 39.True or false: coins is not needed for the paper bridge. (a) False (b) True
40. 40.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) a U-shaped channel (c) rolled paper tubes (d) a zigzag-folded sheet

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