Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 243 · 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? Which of these is the one thing we change? (a) coins it holds (b) the gap between books (c) the shape of the paper (d) the kind of coins
2. 2.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False
3. 3.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a hollow bird bone (c) an eggshell (d) an electric tower
4. 4.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
5. 5.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
6. 6.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) fewer coins (d) more coins
7. 7.True or false: a round pillar gets its strength from a tube shape. (a) False (b) True
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a ruler (d) a balloon
9. 9.⚖️ 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
10. 10.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
11. 11.🥚 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
12. 12.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
13. 13.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on top of a pet (c) high and wobbly (d) on a stool edge
14. 14.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
15. 15.True or false: an electric tower gets its strength from arches or domes. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) one flat sheet (b) rolled paper tubes (c) a wet flat sheet (d) a torn flat sheet
17. 17.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a torn flat sheet (c) a zigzag-folded sheet (d) a flat tissue
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) sheets of paper (d) a battery cell
19. 19.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
20. 20.True or false: a bridge truss gets its strength from a tube shape. (a) False (b) True
21. 21.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
22. 22.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it turns to card (c) it sags and falls (d) it gets stronger
23. 23.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
24. 24.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) two books (c) coins (d) turmeric powder
25. 25.🔍 Which is the odd one out? (a) rolled paper tubes (b) paper with folded edges (c) a zigzag-folded sheet (d) one flat sheet
26. 26.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) more (c) not at all (d) less
27. 27.🔺 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
28. 28.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) tubes (c) triangles
29. 29.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) an old stone bridge (c) an eggshell (d) a bamboo pole
30. 30.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) an electric tower (c) a hollow bird bone (d) a roof frame
31. 31.True or false: an eggshell gets its strength from a tube shape. (a) False (b) True
32. 32.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a zigzag-folded sheet (c) a wet flat sheet (d) rolled paper tubes
33. 33.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) a U-shaped channel (c) a zigzag-folded sheet (d) rolled paper tubes
34. 34.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we measure it (c) we keep it the same
35. 35.True or false: an old stone bridge gets its strength from triangles. (a) True (b) False
36. 36.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) tubes (c) triangles
37. 37.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
38. 38.🔍 Which is the odd one out? (a) paper with folded edges (b) rolled paper tubes (c) a torn flat sheet (d) a U-shaped channel
39. 39.🏗️ Which of these gets its strength from arches or domes? (a) an old stone bridge (b) an electric tower (c) a hollow bird bone (d) a roof frame
40. 40.🔍 Which is the odd one out? (a) one flat sheet (b) a torn flat sheet (c) a wet flat sheet (d) a zigzag-folded sheet

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