Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 164 · 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.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is very hot (c) it is made of steel (d) it is magnetic
2. 2.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) one flat sheet (b) a flat tissue (c) a torn flat sheet (d) rolled paper tubes
4. 4.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a magnet (c) a balloon (d) two books
5. 5.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) a hollow bird bone (c) a temple dome (d) a round pillar
6. 6.True or false: a wet flat sheet makes a weak bridge. (a) True (b) False
7. 7.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) a ruler (d) a mirror
8. 8.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
9. 9.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
10. 10.True or false: a bridge truss gets its strength from arches or domes. (a) False (b) True
11. 11.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
12. 12.🔍 Which is the odd one out? (a) a torn flat sheet (b) a zigzag-folded sheet (c) a flat tissue (d) one flat sheet
13. 13.True or false: an eggshell gets its strength from arches or domes. (a) True (b) False
14. 14.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) a bamboo pole (c) an old stone bridge (d) a round pillar
15. 15.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
16. 16.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a temple dome (c) a roof frame (d) an old stone bridge
17. 17.🌉 Which of these makes a strong bridge? (a) a zigzag-folded sheet (b) a wet flat sheet (c) a flat tissue (d) a torn flat sheet
18. 18.True or false: one flat sheet makes a strong bridge. (a) False (b) True
19. 19.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
20. 20.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) False (b) True
21. 21.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) tubes (c) triangles
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) two books (d) a balloon
23. 23.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the shape of the paper (b) where coins are placed (c) the kind of coins (d) coins it holds
24. 24.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
25. 25.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we keep it the same (c) we change it
26. 26.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) more (c) the same number of (d) fewer
27. 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) yeast (c) two books (d) sheets of paper
28. 28.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we keep it the same (b) we change it (c) we measure it
29. 29.🔍 Which is the odd one out? (a) a U-shaped channel (b) rolled paper tubes (c) paper with folded edges (d) a torn flat sheet
30. 30.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) a zigzag-folded sheet (c) rolled paper tubes (d) a U-shaped channel
31. 31.True or false: a magnet is not needed for the paper bridge. (a) True (b) False
32. 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a battery cell (c) two books (d) a ruler
33. 33.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds are magnetic (c) folds make it stiffer (d) folds add glue
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) sheets of paper (c) a ruler (d) coins
35. 35.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) only water (c) more coins (d) fewer coins
36. 36.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
37. 37.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the triangle (c) the star (d) the square
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a mirror (c) coins (d) sheets of paper
39. 39.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a U-shaped channel (c) a wet flat sheet (d) rolled paper tubes
40. 40.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) turmeric powder (c) sheets of paper (d) a magnet

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