Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 325 · 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.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it floats up (c) it turns to card (d) it sags and falls
2. 2.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we measure it (c) we change it
3. 3.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) the same number of (d) more
4. 4.🏗️ Which of these gets its strength from a tube shape? (a) a bamboo pole (b) a temple dome (c) an electric tower (d) a bridge truss
5. 5.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on a stool edge (c) high and wobbly (d) on top of a pet
6. 6.🔍 Which is the odd one out? (a) a wet flat sheet (b) rolled paper tubes (c) a zigzag-folded sheet (d) paper with folded edges
7. 7.⚖️ 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
8. 8.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a hollow bird bone (c) an electric tower (d) an old stone bridge
9. 9.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
10. 10.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True
11. 11.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
12. 12.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
13. 13.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) the kind of coins (c) coins it holds (d) the shape of the paper
14. 14.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) less (c) not at all (d) more
15. 15.True or false: an electric tower gets its strength from arches or domes. (a) False (b) True
16. 16.True or false: a bridge truss gets its strength from arches or domes. (a) False (b) True
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
18. 18.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
19. 19.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
20. 20.True or false: a flat tissue makes a strong bridge. (a) False (b) True
21. 21.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a torn flat sheet (c) rolled paper tubes (d) one flat sheet
22. 22.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) lick your fingers (d) skip washing
23. 23.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we change it (c) we keep it the same
24. 24.True or false: a hollow bird bone gets its strength from triangles. (a) True (b) False
25. 25.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we measure it (c) we keep it the same
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) coins (c) a ruler (d) two books
27. 27.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
28. 28.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds make it wet (c) folds are magnetic (d) folds add glue
29. 29.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) True (b) False
30. 30.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
31. 31.⚖️ 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
32. 32.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) tubes (c) triangles
33. 33.🧺 Which of these is not needed for the paper bridge? (a) a magnet (b) sheets of paper (c) coins (d) a ruler
34. 34.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
35. 35.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
36. 36.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
37. 37.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) paper with folded edges (c) a wet flat sheet (d) a flat tissue
38. 38.True or false: one flat sheet makes a strong bridge. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) a flat tissue (b) paper with folded edges (c) a zigzag-folded sheet (d) a U-shaped channel
40. 40.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True

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