Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 847 · 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.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) an old stone bridge (c) an electric tower (d) a roof frame
3. 3.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) where coins are placed (c) the shape of the paper (d) the gap between books
4. 4.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
5. 5.True or false: one flat sheet makes a weak bridge. (a) True (b) False
6. 6.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) upward (c) less (d) more
7. 7.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it stiffer (c) folds make it wet (d) folds are magnetic
8. 8.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) more (c) zero (d) fewer
9. 9.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
10. 10.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) coins it holds (c) the shape of the paper (d) where coins are placed
11. 11.True or false: a battery cell is needed for the paper bridge. (a) False (b) True
12. 12.True or false: yeast is not needed for the paper bridge. (a) False (b) True
13. 13.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
14. 14.True or false: a mirror is needed for the paper bridge. (a) False (b) True
15. 15.⚖️ 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
16. 16.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
17. 17.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we change it (c) we measure it
18. 18.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) turmeric powder (c) sheets of paper (d) a magnet
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) coins (c) sheets of paper (d) a ruler
20. 20.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) paper with folded edges (c) a wet flat sheet (d) one flat sheet
21. 21.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
22. 22.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
23. 23.True or false: a bridge truss gets its strength from arches or domes. (a) True (b) False
24. 24.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) low and steady (d) on top of a pet
25. 25.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) arches and domes (c) tubes
26. 26.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) wash your hands (c) lick your fingers (d) rub your eyes
27. 27.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) a ruler (d) a magnet
28. 28.🧺 Which of these is needed for the paper bridge? (a) two books (b) a mirror (c) a balloon (d) a magnet
29. 29.🧺 Which of these is needed for the paper bridge? (a) coins (b) yeast (c) a magnet (d) a battery cell
30. 30.🔍 Which is the odd one out? (a) a U-shaped channel (b) rolled paper tubes (c) a zigzag-folded sheet (d) a torn flat sheet
31. 31.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
32. 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) yeast (d) a ruler
33. 33.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
34. 34.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
35. 35.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) two books (c) a balloon (d) a ruler
36. 36.True or false: a roof frame gets its strength from arches or domes. (a) True (b) False
37. 37.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a bamboo pole (c) a bridge truss (d) an eggshell
38. 38.⚖️ 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 change it (c) we measure it
39. 39.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) only water (d) fewer coins
40. 40.⚖️ 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

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