Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 440 · 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 U-shaped channel (b) a wet flat sheet (c) one flat sheet (d) a flat tissue
2. 2.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) a mirror (d) coins
3. 3.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) rub your eyes (c) lick your fingers (d) wash your hands
4. 4.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) the kind of coins (c) coins it holds (d) the kind of paper
5. 5.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) yeast (c) a magnet (d) sheets of paper
6. 6.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
7. 7.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
8. 8.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
9. 9.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
10. 10.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) yeast (c) a ruler (d) two books
11. 11.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
12. 12.True or false: a battery cell is needed for the paper bridge. (a) True (b) False
13. 13.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) on a stool edge (d) low and steady
14. 14.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
15. 15.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) a bridge truss (c) a bamboo pole (d) an old stone bridge
16. 16.🌉 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
17. 17.🌉 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
18. 18.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a mirror (c) two books (d) turmeric powder
19. 19.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we keep it the same (b) we change it (c) we measure it
20. 20.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
21. 21.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
22. 22.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
23. 23.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) sheets of paper (c) two books (d) a ruler
24. 24.🔍 Which is the odd one out? (a) a torn flat sheet (b) one flat sheet (c) rolled paper tubes (d) a wet flat sheet
25. 25.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) False (b) True
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) yeast (d) sheets of paper
27. 27.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a roof frame (c) a hollow bird bone (d) an old stone bridge
28. 28.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the gap between books (b) the shape of the paper (c) where coins are placed (d) coins it holds
29. 29.⚖️ 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
30. 30.True or false: a magnet is needed for the paper bridge. (a) False (b) True
31. 31.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
32. 32.🏗️ Which of these gets its strength from triangles? (a) a roof frame (b) a round pillar (c) an eggshell (d) a hollow bird bone
33. 33.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) rolled paper tubes (c) one flat sheet (d) a wet flat sheet
34. 34.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it gets stronger (c) it sags and falls (d) it floats up
35. 35.True or false: a hollow bird bone gets its strength from triangles. (a) True (b) False
36. 36.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) triangles (c) tubes
37. 37.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) a torn flat sheet (d) a U-shaped channel
39. 39.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
40. 40.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) tubes (c) arches and domes

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