Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 707 · 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) sheets of paper (b) two books (c) coins (d) a mirror
2. 2.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we measure it (b) we change it (c) we keep it the same
3. 3.🛟 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
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) two books (d) a battery cell
5. 5.True or false: coins is needed for the paper bridge. (a) False (b) True
6. 6.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) the same number of (c) zero (d) more
7. 7.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) a roof frame (c) an eggshell (d) a bamboo pole
8. 8.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
9. 9.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
10. 10.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) False (b) True
11. 11.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
12. 12.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the kind of paper (c) the shape of the paper
13. 13.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
14. 14.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the heart shape (c) the star (d) the triangle
15. 15.True or false: a roof frame gets its strength from a tube shape. (a) True (b) False
16. 16.🏗️ Where does an electric tower get its strength from? (a) triangles (b) arches and domes (c) tubes
17. 17.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) two books (d) yeast
18. 18.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a roof frame (c) a hollow bird bone (d) a bamboo pole
19. 19.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) the kind of paper (c) the shape of the paper (d) the gap between books
20. 20.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
21. 21.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is made of steel (c) it is magnetic (d) its curved arch shape
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a magnet (d) a ruler
23. 23.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a mirror (c) yeast (d) coins
24. 24.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) tubes (c) arches and domes
25. 25.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
26. 26.🧺 Which of these is not needed for the paper bridge? (a) a magnet (b) coins (c) two books (d) a ruler
27. 27.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) a temple dome (c) a roof frame (d) a round pillar
28. 28.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
29. 29.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) a round pillar (c) an eggshell (d) a bridge truss
30. 30.🔍 Which is the odd one out? (a) a U-shaped channel (b) rolled paper tubes (c) a zigzag-folded sheet (d) a wet flat sheet
31. 31.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a zigzag-folded sheet (c) a wet flat sheet (d) a torn flat sheet
32. 32.⚖️ 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
33. 33.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
34. 34.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) one flat sheet (c) rolled paper tubes (d) paper with folded edges
35. 35.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) a temple dome (c) an eggshell (d) a round pillar
36. 36.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) turmeric powder (d) sheets of paper
37. 37.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a U-shaped channel (c) a torn flat sheet (d) paper with folded edges
38. 38.⚖️ 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
39. 39.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
40. 40.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it stiffer (c) folds make it wet (d) folds add glue

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