Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 932 · 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 is the odd one out? (a) a wet flat sheet (b) one flat sheet (c) a torn flat sheet (d) rolled paper tubes
2. 2.⚖️ 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
3. 3.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) an eggshell (c) a hollow bird bone (d) a bridge truss
4. 4.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) False (b) True
5. 5.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a U-shaped channel (c) a torn flat sheet (d) a zigzag-folded sheet
6. 6.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) rub your eyes (c) wash your hands (d) lick your fingers
7. 7.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
8. 8.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
9. 9.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) fewer coins (c) only water (d) the same coins
10. 10.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) a temple dome (c) a bridge truss (d) a roof frame
11. 11.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a battery cell (c) turmeric powder (d) sheets of paper
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a battery cell (d) coins
13. 13.True or false: a ruler is needed for the paper bridge. (a) False (b) True
14. 14.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
15. 15.True or false: a hollow bird bone gets its strength from a tube shape. (a) False (b) True
16. 16.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) on a stool edge (c) low and steady (d) high and wobbly
17. 17.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) where coins are placed (c) coins it holds (d) the shape of the paper
18. 18.⚖️ 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 measure it (c) we change it
19. 19.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) a balloon (d) sheets of paper
21. 21.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) yeast (d) a ruler
23. 23.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
24. 24.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it turns to card (c) it floats up (d) it sags and falls
25. 25.🔍 Which is the odd one out? (a) a U-shaped channel (b) a torn flat sheet (c) a flat tissue (d) a wet flat sheet
26. 26.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
27. 27.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) upward (c) not at all (d) less
28. 28.True or false: a flat tissue makes a strong bridge. (a) True (b) False
29. 29.True or false: two books is not needed for the paper bridge. (a) False (b) True
30. 30.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
31. 31.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) triangles (c) tubes
32. 32.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) an eggshell (c) a roof frame (d) a bamboo pole
33. 33.🏗️ Where does an electric tower get its strength from? (a) tubes (b) arches and domes (c) triangles
34. 34.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) triangles (c) arches and domes
35. 35.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
36. 36.🌉 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
37. 37.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) turmeric powder (c) yeast (d) two books
38. 38.True or false: a battery cell is needed for the paper bridge. (a) False (b) True
39. 39.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a magnet (c) a balloon (d) a ruler
40. 40.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True

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