Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 620 · 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 electric tower get its strength from? (a) arches and domes (b) tubes (c) triangles
2. 2.True or false: a bridge truss gets its strength from arches or domes. (a) False (b) True
3. 3.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) on a stool edge (d) low and steady
4. 4.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) only water (d) fewer coins
5. 5.🔍 Which is the odd one out? (a) rolled paper tubes (b) a U-shaped channel (c) paper with folded edges (d) one flat sheet
6. 6.🔍 Which is the odd one out? (a) a flat tissue (b) a zigzag-folded sheet (c) rolled paper tubes (d) a U-shaped channel
7. 7.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) lick your fingers (c) wash your hands (d) skip washing
8. 8.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) a bridge truss (c) a temple dome (d) an eggshell
9. 9.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
10. 10.⚖️ 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) where coins are placed
11. 11.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
12. 12.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) more (c) zero (d) the same number of
13. 13.⚖️ 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
14. 14.🌉 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
15. 15.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) rolled paper tubes (c) a U-shaped channel (d) one flat sheet
16. 16.🏗️ Where does a roof frame get its strength from? (a) tubes (b) arches and domes (c) triangles
17. 17.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a mirror (c) a ruler (d) coins
18. 18.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a ruler (c) two books (d) a battery cell
19. 19.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) the gap between books (c) coins it holds (d) where coins are placed
20. 20.⚖️ 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 change it (c) we measure it
21. 21.True or false: a roof frame gets its strength from arches or domes. (a) False (b) True
22. 22.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
23. 23.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
24. 24.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) triangles (c) arches and domes
25. 25.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) where coins are placed (b) the shape of the paper (c) coins it holds
26. 26.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
27. 27.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
28. 28.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a zigzag-folded sheet (c) rolled paper tubes (d) a torn flat sheet
29. 29.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) a U-shaped channel (b) a torn flat sheet (c) a zigzag-folded sheet (d) paper with folded edges
31. 31.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) a zigzag-folded sheet (d) one flat sheet
32. 32.🔍 Which is the odd one out? (a) a torn flat sheet (b) rolled paper tubes (c) one flat sheet (d) a wet flat sheet
33. 33.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) coins (c) a mirror (d) a balloon
34. 34.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds add glue (c) folds make it wet (d) folds are magnetic
35. 35.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the kind of coins (c) the shape of the paper
36. 36.True or false: a ruler is needed for the paper bridge. (a) False (b) True
37. 37.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we change it (c) we keep it the same
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) sheets of paper (c) two books (d) coins
39. 39.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
40. 40.⚖️ 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

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