Paper Bridge STEM Challenge Worksheet

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

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