Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 118 · 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: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
2. 2.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) more (c) fewer (d) the same number of
3. 3.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) skip washing (d) wash your hands
4. 4.🧺 Which of these is not needed for the paper bridge? (a) a balloon (b) sheets of paper (c) two books (d) coins
5. 5.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) two books (d) a battery cell
6. 6.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) not at all (c) less (d) upward
7. 7.🌉 Which of these makes a strong bridge? (a) rolled paper tubes (b) a torn flat sheet (c) a wet flat sheet (d) one flat sheet
8. 8.🔍 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
9. 9.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) True (b) False
10. 10.True or false: yeast is needed for the paper bridge. (a) True (b) False
11. 11.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) low and steady (c) high and wobbly (d) on top of a pet
12. 12.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) an old stone bridge (c) a bridge truss (d) a round pillar
13. 13.🌉 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
14. 14.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) a zigzag-folded sheet (c) rolled paper tubes (d) paper with folded edges
15. 15.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
16. 16.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) sheets of paper (c) a balloon (d) yeast
17. 17.True or false: coins is needed for the paper bridge. (a) True (b) False
18. 18.True or false: a temple dome gets its strength from triangles. (a) False (b) True
19. 19.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
20. 20.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a zigzag-folded sheet (c) paper with folded edges (d) a flat tissue
21. 21.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we change it (c) we keep it the same
22. 22.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
23. 23.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) a bamboo pole (c) a bridge truss (d) a temple dome
24. 24.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we measure it (c) we keep it the same
25. 25.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a magnet (c) coins (d) two books
27. 27.🏗️ Where does a temple dome get its strength from? (a) arches and domes (b) triangles (c) tubes
28. 28.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
29. 29.🧺 Which of these is needed for the paper bridge? (a) two books (b) a magnet (c) turmeric powder (d) a balloon
30. 30.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it wet (c) folds make it stiffer (d) folds are magnetic
31. 31.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) a torn flat sheet (d) a zigzag-folded sheet
32. 32.🏗️ Where does an electric tower get its strength from? (a) tubes (b) triangles (c) arches and domes
33. 33.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) a ruler (c) sheets of paper (d) coins
34. 34.🔍 Which is the odd one out? (a) paper with folded edges (b) rolled paper tubes (c) one flat sheet (d) a zigzag-folded sheet
35. 35.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
36. 36.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) where coins are placed (b) coins it holds (c) the shape of the paper
37. 37.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
38. 38.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) True (b) False
39. 39.True or false: two books is needed for the paper bridge. (a) True (b) False
40. 40.⚖️ 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

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