Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 340 · 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: an old stone bridge gets its strength from a tube shape. (a) True (b) False
2. 2.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) triangles (c) tubes
3. 3.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a battery cell (c) coins (d) sheets of paper
4. 4.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) fewer coins (c) the same coins (d) only water
5. 5.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
6. 6.True or false: a bamboo pole gets its strength from triangles. (a) True (b) False
7. 7.🧺 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
8. 8.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) wash your hands (c) lick your fingers (d) skip washing
9. 9.True or false: a balloon is needed for the paper bridge. (a) True (b) False
10. 10.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
11. 11.🧺 Which of these is needed for the paper bridge? (a) a ruler (b) turmeric powder (c) a battery cell (d) a balloon
12. 12.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) paper with folded edges (d) one flat sheet
13. 13.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) yeast (c) turmeric powder (d) two books
14. 14.True or false: a battery cell is not needed for the paper bridge. (a) True (b) False
15. 15.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a flat tissue (c) a wet flat sheet (d) rolled paper tubes
16. 16.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
17. 17.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) a flat tissue (b) a torn flat sheet (c) a wet flat sheet (d) rolled paper tubes
19. 19.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) arches and domes (c) tubes
20. 20.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we keep it the same (c) we change it
21. 21.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a battery cell (c) a magnet (d) coins
22. 22.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a torn flat sheet (c) paper with folded edges (d) a U-shaped channel
23. 23.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we keep it the same (c) we measure it
24. 24.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) False (b) True
25. 25.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) the kind of paper (c) the shape of the paper (d) the gap between books
26. 26.True or false: a magnet is needed for the paper bridge. (a) True (b) False
27. 27.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) the same number of (d) more
28. 28.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) the kind of paper
29. 29.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we keep it the same (b) we measure it (c) we change it
30. 30.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on a stool edge (c) on top of a pet (d) high and wobbly
31. 31.True or false: one flat sheet makes a strong bridge. (a) True (b) False
32. 32.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) turmeric powder (c) sheets of paper (d) two books
33. 33.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) tubes (c) arches and domes
34. 34.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) a bridge truss (c) an eggshell (d) a round pillar
35. 35.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) a round pillar (c) a bridge truss (d) an eggshell
36. 36.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
37. 37.True or false: a roof frame gets its strength from triangles. (a) False (b) True
38. 38.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) a U-shaped channel (c) a zigzag-folded sheet (d) paper with folded edges
39. 39.🔍 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
40. 40.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) upward (c) not at all (d) more

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