Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 276 · 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.🔍 Which is the odd one out? (a) rolled paper tubes (b) a zigzag-folded sheet (c) a U-shaped channel (d) a flat tissue
2. 2.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds add glue (c) folds are magnetic (d) folds make it wet
3. 3.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) True (b) False
4. 4.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
5. 5.True or false: an eggshell gets its strength from triangles. (a) True (b) False
6. 6.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) True (b) False
7. 7.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the gap between books (b) the shape of the paper (c) the kind of paper (d) coins it holds
8. 8.⚖️ 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
9. 9.True or false: one flat sheet makes a strong bridge. (a) True (b) False
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a ruler (d) a balloon
11. 11.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) low and steady (c) on a stool edge (d) on top of a pet
12. 12.🧺 Which of these is not needed for the paper bridge? (a) a magnet (b) a ruler (c) sheets of paper (d) two books
13. 13.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
14. 14.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) skip washing (c) lick your fingers (d) rub your eyes
15. 15.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we keep it the same (b) we measure it (c) we change it
16. 16.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) one flat sheet (c) a wet flat sheet (d) a U-shaped channel
17. 17.🔍 Which is the odd one out? (a) rolled paper tubes (b) a U-shaped channel (c) paper with folded edges (d) a torn flat sheet
18. 18.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
19. 19.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
20. 20.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) triangles (c) tubes
21. 21.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a temple dome (c) a bamboo pole (d) a roof frame
22. 22.🧺 Which of these is not needed for the paper bridge? (a) coins (b) yeast (c) two books (d) sheets of paper
23. 23.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) coins it holds (c) the kind of paper (d) the shape of the paper
24. 24.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) an eggshell (c) a bridge truss (d) a round pillar
25. 25.True or false: a roof frame gets its strength from triangles. (a) False (b) True
26. 26.True or false: a ruler is needed for the paper bridge. (a) False (b) True
27. 27.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we keep it the same (c) we measure it
28. 28.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) only water (c) more coins (d) fewer coins
29. 29.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a battery cell (c) coins (d) a ruler
30. 30.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) the same number of (d) more
31. 31.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
32. 32.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of coins (b) the shape of the paper (c) coins it holds
33. 33.⚖️ 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 gap between books
34. 34.🔮 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
35. 35.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
36. 36.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
37. 37.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) coins (c) a mirror (d) a magnet
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.True or false: a balloon is needed for the paper bridge. (a) True (b) False
40. 40.True or false: paper with folded edges makes a strong bridge. (a) False (b) True

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