Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 107 · 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.⚖️ 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
2. 2.True or false: an electric tower gets its strength from a tube shape. (a) True (b) False
3. 3.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) a bridge truss (c) an eggshell (d) a hollow bird bone
4. 4.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
5. 5.🔍 Which is the odd one out? (a) one flat sheet (b) a zigzag-folded sheet (c) rolled paper tubes (d) a U-shaped channel
6. 6.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) an old stone bridge (c) a temple dome (d) a hollow bird bone
7. 7.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) a ruler (c) sheets of paper (d) coins
8. 8.⚖️ 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
9. 9.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
10. 10.True or false: a balloon is not needed for the paper bridge. (a) True (b) False
11. 11.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) not at all (c) less (d) more
12. 12.🏗️ Where does a temple dome get its strength from? (a) arches and domes (b) triangles (c) tubes
13. 13.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we keep it the same (c) we change it
14. 14.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) an old stone bridge (c) a temple dome (d) a round pillar
15. 15.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it stiffer (c) folds are magnetic (d) folds make it wet
16. 16.🔍 Which is the odd one out? (a) a wet flat sheet (b) a flat tissue (c) a U-shaped channel (d) one flat sheet
17. 17.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) yeast (d) sheets of paper
19. 19.True or false: a ruler is needed for the paper bridge. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) a wet flat sheet (b) one flat sheet (c) a flat tissue (d) paper with folded edges
21. 21.🥚 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 magnetic (d) it is made of steel
22. 22.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) low and steady (d) on a stool edge
23. 23.🌉 Which of these makes a strong bridge? (a) a zigzag-folded sheet (b) a flat tissue (c) a wet flat sheet (d) a torn flat sheet
24. 24.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
25. 25.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) triangles (c) tubes
26. 26.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
27. 27.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) tubes (c) triangles
28. 28.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
29. 29.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) turmeric powder (d) sheets of paper
30. 30.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the star (c) the triangle (d) the heart shape
31. 31.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) skip washing (d) wash your hands
32. 32.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a mirror (c) sheets of paper (d) a battery cell
33. 33.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it turns to card (c) it floats up (d) it gets stronger
34. 34.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
35. 35.⚖️ 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
36. 36.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) sheets of paper (d) a magnet
37. 37.🔍 Which is the odd one out? (a) a wet flat sheet (b) one flat sheet (c) a flat tissue (d) rolled paper tubes
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) a magnet (d) coins
39. 39.⚖️ 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 change it (c) we measure it
40. 40.⚖️ 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

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