Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 849 · 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.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) coins (c) two books (d) a ruler
2. 2.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) the kind of coins
3. 3.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
4. 4.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) False (b) True
5. 5.True or false: a mirror is needed for the paper bridge. (a) False (b) True
6. 6.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) a roof frame (c) an eggshell (d) an old stone bridge
7. 7.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) one flat sheet (c) a zigzag-folded sheet (d) a wet flat sheet
8. 8.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a mirror (c) coins (d) a magnet
9. 9.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
10. 10.⚖️ 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
11. 11.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) coins (d) a battery cell
12. 12.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
13. 13.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
14. 14.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) a bridge truss (c) an eggshell (d) a temple dome
15. 15.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
16. 16.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
17. 17.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) a magnet (d) sheets of paper
18. 18.⚖️ 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
19. 19.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) where coins are placed (c) coins it holds (d) the kind of paper
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) turmeric powder (d) a ruler
21. 21.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
22. 22.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
23. 23.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
24. 24.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds are magnetic (c) folds make it stiffer (d) folds add glue
25. 25.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it floats up (c) it sags and falls (d) it turns to card
26. 26.🛟 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
27. 27.🔍 Which is the odd one out? (a) a torn flat sheet (b) a flat tissue (c) paper with folded edges (d) a wet flat sheet
28. 28.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) fewer coins (c) more coins (d) the same coins
29. 29.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a round pillar (c) a temple dome (d) an eggshell
30. 30.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
31. 31.True or false: a bridge truss gets its strength from a tube shape. (a) True (b) False
32. 32.⚖️ 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
33. 33.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the star (c) the square (d) the triangle
34. 34.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a flat tissue (c) a torn flat sheet (d) a wet flat sheet
35. 35.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) tubes (c) arches and domes
36. 36.True or false: yeast is needed for the paper bridge. (a) False (b) True
37. 37.🛟 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
38. 38.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
39. 39.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a magnet (c) sheets of paper (d) a balloon
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) coins (d) a magnet

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