Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 881 · 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.🏗️ Where does an eggshell get its strength from? (a) tubes (b) arches and domes (c) triangles
2. 2.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) paper with folded edges (c) a zigzag-folded sheet (d) rolled paper tubes
3. 3.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) the same number of (c) more (d) zero
4. 4.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) high and wobbly (d) low and steady
5. 5.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is made of steel (c) it is magnetic (d) its curved arch shape
6. 6.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) two books (d) yeast
7. 7.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a temple dome (c) a round pillar (d) an electric tower
8. 8.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
9. 9.🔍 Which is the odd one out? (a) a wet flat sheet (b) one flat sheet (c) paper with folded edges (d) a flat tissue
10. 10.🏗️ Which of these gets its strength from triangles? (a) a roof frame (b) a temple dome (c) a hollow bird bone (d) an old stone bridge
11. 11.🔍 Which is the odd one out? (a) a flat tissue (b) a torn flat sheet (c) a zigzag-folded sheet (d) a wet flat sheet
12. 12.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a bridge truss (c) a round pillar (d) a temple dome
13. 13.True or false: a battery cell is not needed for the paper bridge. (a) True (b) False
14. 14.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a bridge truss (c) an eggshell (d) a hollow bird bone
15. 15.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) two books (d) turmeric powder
16. 16.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we measure it (b) we keep it the same (c) we change it
17. 17.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the gap between books (b) coins it holds (c) the kind of coins (d) the shape of the paper
18. 18.🌉 Which of these makes a strong bridge? (a) a U-shaped channel (b) one flat sheet (c) a torn flat sheet (d) a wet flat sheet
19. 19.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
20. 20.🔍 Which is the odd one out? (a) a U-shaped channel (b) rolled paper tubes (c) a zigzag-folded sheet (d) one flat sheet
21. 21.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
22. 22.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
23. 23.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) the shape of the paper (c) coins it holds (d) where coins are placed
24. 24.True or false: an electric tower gets its strength from a tube shape. (a) True (b) False
25. 25.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) arches and domes (c) triangles
26. 26.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
27. 27.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a ruler (c) sheets of paper (d) a magnet
28. 28.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we change it (c) we keep it the same
29. 29.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
30. 30.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
31. 31.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) a torn flat sheet (d) rolled paper tubes
32. 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) sheets of paper (c) coins (d) a ruler
33. 33.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) triangles (c) tubes
34. 34.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a ruler (c) a battery cell (d) two books
35. 35.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) upward (c) more (d) not at all
36. 36.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) lick your fingers (c) rub your eyes (d) skip washing
37. 37.⚖️ 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 change it (c) we measure it
38. 38.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) True (b) False
39. 39.True or false: one flat sheet makes a weak bridge. (a) False (b) True
40. 40.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a hollow bird bone (c) a roof frame (d) an old stone bridge

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