Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 275 · 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.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
2. 2.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) on top of a pet (d) low and steady
3. 3.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a round pillar (c) a roof frame (d) a temple dome
4. 4.🌉 Which of these makes a weak bridge? (a) a torn flat sheet (b) paper with folded edges (c) a U-shaped channel (d) a zigzag-folded sheet
5. 5.🔍 Which is the odd one out? (a) a flat tissue (b) a U-shaped channel (c) a wet flat sheet (d) a torn flat sheet
6. 6.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
7. 7.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) triangles (c) tubes
8. 8.🔮 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
9. 9.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) a bamboo pole (c) a hollow bird bone (d) an eggshell
10. 10.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds add glue (c) folds are magnetic (d) folds make it stiffer
11. 11.⚖️ 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) the shape of the paper (d) where coins are placed
12. 12.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
13. 13.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) True (b) False
14. 14.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
15. 15.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) coins it holds (c) the shape of the paper (d) the kind of paper
16. 16.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we measure it (c) we keep it the same
17. 17.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
18. 18.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we keep it the same (c) we measure it
19. 19.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
20. 20.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) triangles (c) tubes
21. 21.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) a bridge truss (c) a temple dome (d) an electric tower
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) coins (d) a mirror
23. 23.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) True (b) False
24. 24.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we measure it (c) we keep it the same
25. 25.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) False (b) True
26. 26.True or false: an eggshell gets its strength from triangles. (a) True (b) False
27. 27.True or false: coins is needed for the paper bridge. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) rolled paper tubes (b) a flat tissue (c) paper with folded edges (d) a zigzag-folded sheet
29. 29.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) fewer coins (c) more coins (d) the same coins
30. 30.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) wash your hands (c) lick your fingers (d) skip washing
31. 31.🔍 Which is the odd one out? (a) rolled paper tubes (b) a wet flat sheet (c) one flat sheet (d) a flat tissue
32. 32.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it floats up (c) it turns to card (d) it gets stronger
33. 33.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
34. 34.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) a torn flat sheet (d) a zigzag-folded sheet
35. 35.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a balloon (c) a ruler (d) a magnet
36. 36.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) an eggshell (c) a round pillar (d) a roof frame
37. 37.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) two books (c) sheets of paper (d) a ruler
38. 38.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) triangles (c) arches and domes
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) a battery cell (d) two books
40. 40.True or false: a roof frame gets its strength from a tube shape. (a) True (b) False

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