Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 241 · 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 of these is needed for the paper bridge? (a) a magnet (b) a battery cell (c) turmeric powder (d) sheets of paper
2. 2.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (a) False (b) True
3. 3.True or false: a flat tissue makes a weak bridge. (a) True (b) False
4. 4.⚖️ 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
5. 5.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) triangles (c) tubes
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) coins (c) a ruler (d) sheets of paper
7. 7.🔍 Which is the odd one out? (a) a U-shaped channel (b) paper with folded edges (c) a zigzag-folded sheet (d) one flat sheet
8. 8.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we keep it the same (c) we change it
9. 9.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a temple dome (c) an old stone bridge (d) a roof frame
10. 10.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a bamboo pole (c) a roof frame (d) an old stone bridge
11. 11.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) tubes (c) triangles
12. 12.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a balloon (c) turmeric powder (d) a ruler
13. 13.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
14. 14.🌉 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
15. 15.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
16. 16.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
17. 17.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) turmeric powder (c) two books (d) sheets of paper
18. 18.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) high and wobbly (d) low and steady
19. 19.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
20. 20.True or false: a flat tissue makes a strong bridge. (a) True (b) False
21. 21.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
22. 22.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we measure it (c) we keep it the same
23. 23.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
24. 24.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) lick your fingers (c) wash your hands (d) skip washing
25. 25.True or false: two books is not needed for the paper bridge. (a) False (b) True
26. 26.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
27. 27.🌉 Which of these makes a weak bridge? (a) a torn flat sheet (b) rolled paper tubes (c) a U-shaped channel (d) paper with folded edges
28. 28.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
29. 29.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
30. 30.⚖️ 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
31. 31.⚖️ 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
32. 32.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
33. 33.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) where coins are placed (c) the kind of paper (d) coins it holds
34. 34.True or false: a mirror is not needed for the paper bridge. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a torn flat sheet (c) paper with folded edges (d) a U-shaped channel
36. 36.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the square (c) the triangle (d) the heart shape
37. 37.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) True (b) False
38. 38.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) tubes (c) arches and domes
39. 39.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) an electric tower (c) a bridge truss (d) a hollow bird bone
40. 40.True or false: a balloon is needed for the paper bridge. (a) False (b) True

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