Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 251 · 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.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) True (b) False
2. 2.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
3. 3.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a battery cell (c) two books (d) a magnet
4. 4.True or false: a wet flat sheet makes a weak bridge. (a) True (b) False
5. 5.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) a bamboo pole (c) an eggshell (d) a round pillar
6. 6.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) high and wobbly (c) low and steady (d) on top of a pet
7. 7.True or false: one flat sheet makes a strong bridge. (a) True (b) False
8. 8.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) an eggshell (c) an old stone bridge (d) an electric tower
9. 9.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the heart shape (c) the triangle (d) the square
10. 10.True or false: a bamboo pole gets its strength from a tube shape. (a) True (b) False
11. 11.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a hollow bird bone (c) a bridge truss (d) an old stone bridge
12. 12.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds add glue (c) folds make it stiffer (d) folds are magnetic
13. 13.🏗️ Which of these gets its strength from triangles? (a) a roof frame (b) a hollow bird bone (c) a round pillar (d) a bamboo pole
14. 14.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a zigzag-folded sheet (c) one flat sheet (d) a flat tissue
15. 15.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the kind of coins (c) the kind of paper (d) where coins are placed
16. 16.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) triangles (c) tubes
17. 17.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a balloon (d) two books
18. 18.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) the kind of coins (c) the shape of the paper (d) the gap between books
19. 19.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) wash your hands (c) skip washing (d) lick your fingers
20. 20.True or false: a round pillar gets its strength from arches or domes. (a) False (b) True
21. 21.🏗️ Where does a round pillar get its strength from? (a) tubes (b) triangles (c) arches and domes
22. 22.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) only water (c) the same coins (d) more coins
23. 23.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
24. 24.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) turmeric powder (c) a ruler (d) a magnet
25. 25.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
26. 26.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a flat tissue (c) one flat sheet (d) rolled paper tubes
27. 27.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) upward (c) less (d) more
28. 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) turmeric powder (d) two books
29. 29.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is magnetic (c) it is made of steel (d) its curved arch shape
30. 30.True or false: a roof frame gets its strength from a tube shape. (a) False (b) True
31. 31.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
32. 32.🏗️ Where does an eggshell get its strength from? (a) tubes (b) arches and domes (c) triangles
33. 33.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
34. 34.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we keep it the same (c) we measure it
35. 35.True or false: a temple dome gets its strength from a tube shape. (a) False (b) True
36. 36.True or false: paper with folded edges makes a weak bridge. (a) True (b) False
37. 37.True or false: turmeric powder is not needed for the paper bridge. (a) True (b) False
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) a ruler (d) a mirror
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
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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