Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 468 · 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.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
2. 2.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) a ruler (d) turmeric powder
3. 3.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) True (b) False
4. 4.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
5. 5.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) a hollow bird bone (c) an electric tower (d) an eggshell
6. 6.⚖️ 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
7. 7.⚖️ 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
8. 8.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) wash your hands (c) skip washing (d) rub your eyes
9. 9.True or false: turmeric powder is not needed for the paper bridge. (a) True (b) False
10. 10.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) more coins (c) the same coins (d) only water
11. 11.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
12. 12.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
13. 13.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
14. 14.True or false: a battery cell is needed for the paper bridge. (a) False (b) True
15. 15.🏗️ Where does a round pillar get its strength from? (a) triangles (b) arches and domes (c) tubes
16. 16.True or false: yeast is needed for the paper bridge. (a) True (b) False
17. 17.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
18. 18.True or false: a flat tissue makes a strong bridge. (a) False (b) True
19. 19.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) its curved arch shape (c) it is magnetic (d) it is made of steel
20. 20.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) sheets of paper (c) yeast (d) a mirror
21. 21.🔍 Which is the odd one out? (a) one flat sheet (b) paper with folded edges (c) a zigzag-folded sheet (d) rolled paper tubes
22. 22.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it stiffer (c) folds make it wet (d) folds add glue
23. 23.True or false: a bridge truss gets its strength from a tube shape. (a) True (b) False
24. 24.True or false: yeast is not needed for the paper bridge. (a) False (b) True
25. 25.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) more (c) the same number of (d) fewer
26. 26.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a mirror (c) a battery cell (d) a ruler
27. 27.🔍 Which is the odd one out? (a) a wet flat sheet (b) a zigzag-folded sheet (c) a flat tissue (d) a torn flat sheet
28. 28.True or false: a hollow bird bone gets its strength from triangles. (a) False (b) True
29. 29.🏗️ Where does an electric tower get its strength from? (a) triangles (b) tubes (c) arches and domes
30. 30.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
31. 31.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) tubes (c) arches and domes
32. 32.True or false: one flat sheet makes a strong bridge. (a) False (b) True
33. 33.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
34. 34.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
35. 35.🔍 Which is the odd one out? (a) one flat sheet (b) a wet flat sheet (c) a flat tissue (d) a U-shaped channel
36. 36.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a wet flat sheet (c) a zigzag-folded sheet (d) a flat tissue
37. 37.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) the kind of paper (c) coins it holds (d) the gap between books
38. 38.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) where coins are placed (c) the shape of the paper
39. 39.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) tubes (c) triangles
40. 40.⚖️ 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

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