Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 195 · 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.True or false: a ruler is needed for the paper bridge. (a) False (b) True
2. 2.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
3. 3.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a hollow bird bone (c) an electric tower (d) an old stone bridge
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a balloon (c) a ruler (d) sheets of paper
5. 5.🏗️ Where does a round pillar get its strength from? (a) triangles (b) arches and domes (c) tubes
6. 6.🔍 Which is the odd one out? (a) one flat sheet (b) a torn flat sheet (c) a flat tissue (d) a zigzag-folded sheet
7. 7.🏗️ Where does an electric tower get its strength from? (a) triangles (b) arches and domes (c) tubes
8. 8.🔍 Which is the odd one out? (a) paper with folded edges (b) one flat sheet (c) a flat tissue (d) a wet flat sheet
9. 9.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) rolled paper tubes (b) a wet flat sheet (c) one flat sheet (d) a torn flat sheet
11. 11.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
12. 12.True or false: an old stone bridge gets its strength from triangles. (a) True (b) False
13. 13.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) wash your hands (c) rub your eyes (d) skip washing
14. 14.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we change it (c) we keep it the same
15. 15.🥚 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
16. 16.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) turmeric powder (d) two books
17. 17.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it gets stronger (c) it floats up (d) it turns to card
18. 18.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) a zigzag-folded sheet (c) paper with folded edges (d) a U-shaped channel
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) yeast (c) a ruler (d) sheets of paper
20. 20.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the kind of coins (c) where coins are placed (d) the shape of the paper
21. 21.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
22. 22.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
23. 23.True or false: a roof frame gets its strength from triangles. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) a flat tissue (b) a U-shaped channel (c) a torn flat sheet (d) one flat sheet
25. 25.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a torn flat sheet (c) a U-shaped channel (d) rolled paper tubes
26. 26.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
27. 27.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a mirror (c) a magnet (d) sheets of paper
28. 28.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
29. 29.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the square (c) the star (d) the triangle
30. 30.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
31. 31.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) a bridge truss (c) an eggshell (d) an electric tower
32. 32.⚖️ 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
33. 33.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
34. 34.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
35. 35.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
36. 36.⚖️ 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 change it (c) we measure it
37. 37.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
38. 38.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) upward (c) less (d) not at all
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) False (b) True
40. 40.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a wet flat sheet (c) paper with folded edges (d) a flat tissue

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