Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 733 · 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.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) zero (c) fewer (d) the same number of
2. 2.🔮 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
3. 3.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) False (b) True
4. 4.True or false: a bamboo pole gets its strength from arches or domes. (a) True (b) False
5. 5.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
6. 6.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) the shape of the paper (c) the kind of coins (d) the gap between books
7. 7.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
8. 8.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
9. 9.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a battery cell (c) coins (d) a ruler
10. 10.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a magnet (c) yeast (d) sheets of paper
11. 11.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it sags and falls (c) it floats up (d) it turns to card
12. 12.🔍 Which is the odd one out? (a) rolled paper tubes (b) a torn flat sheet (c) a wet flat sheet (d) one flat sheet
13. 13.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a torn flat sheet (c) a U-shaped channel (d) rolled paper tubes
14. 14.True or false: two books is not needed for the paper bridge. (a) False (b) True
15. 15.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
16. 16.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
17. 17.True or false: an eggshell gets its strength from a tube shape. (a) False (b) True
18. 18.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
19. 19.🌉 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
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) two books (c) sheets of paper (d) coins
21. 21.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a U-shaped channel (c) rolled paper tubes (d) a wet flat sheet
22. 22.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is the one thing we change. (a) False (b) True
23. 23.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the kind of coins (c) the gap between books (d) the kind of paper
24. 24.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
25. 25.🧺 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 magnet
26. 26.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) triangles (c) arches and domes
27. 27.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
28. 28.🌉 Which of these makes a strong bridge? (a) a zigzag-folded sheet (b) one flat sheet (c) a wet flat sheet (d) a flat tissue
29. 29.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) lick your fingers (c) wash your hands (d) rub your eyes
30. 30.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) False (b) True
31. 31.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) only water (d) fewer coins
32. 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) a ruler (c) coins (d) two books
33. 33.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a temple dome (c) an old stone bridge (d) a bamboo pole
34. 34.True or false: a hollow bird bone gets its strength from a tube shape. (a) False (b) True
35. 35.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
36. 36.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) a round pillar (c) an electric tower (d) an eggshell
37. 37.🔍 Which is the odd one out? (a) a flat tissue (b) a U-shaped channel (c) rolled paper tubes (d) paper with folded edges
38. 38.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a flat tissue (d) a U-shaped channel
39. 39.⚖️ 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
40. 40.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge

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