Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 940 · 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 a roof frame get its strength from? (a) arches and domes (b) tubes (c) triangles
2. 2.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) an old stone bridge (c) a bamboo pole (d) a roof frame
3. 3.🏗️ Which of these gets its strength from arches or domes? (a) a temple dome (b) a bridge truss (c) a bamboo pole (d) a round pillar
4. 4.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) an electric tower (c) a bamboo pole (d) a round pillar
5. 5.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a wet flat sheet (c) one flat sheet (d) a zigzag-folded sheet
6. 6.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) False (b) True
7. 7.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) high and wobbly (c) on a stool edge (d) low and steady
8. 8.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a hollow bird bone (c) an old stone bridge (d) a temple dome
9. 9.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds make it stiffer (c) folds are magnetic (d) folds add glue
10. 10.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) arches and domes (c) triangles
11. 11.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
12. 12.True or false: a magnet is needed for the paper bridge. (a) False (b) True
13. 13.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
14. 14.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) False (b) True
15. 15.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) paper with folded edges (c) a zigzag-folded sheet (d) a U-shaped channel
16. 16.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) False (b) True
18. 18.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it floats up (c) it gets stronger (d) it turns to card
19. 19.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
20. 20.🏗️ Where does a temple dome get its strength from? (a) arches and domes (b) tubes (c) triangles
21. 21.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) arches and domes (c) tubes
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) a mirror (d) a ruler
23. 23.🔺 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 square (d) the star
24. 24.🛟 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
25. 25.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
26. 26.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
27. 27.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) a round pillar (c) a bridge truss (d) an eggshell
28. 28.🏗️ Which of these gets its strength from a tube shape? (a) a bamboo pole (b) an electric tower (c) an old stone bridge (d) a temple dome
29. 29.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
30. 30.⚖️ 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
31. 31.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) the kind of paper
32. 32.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) only water (d) fewer coins
33. 33.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is made of steel (c) it is very hot (d) its curved arch shape
34. 34.⚖️ 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
35. 35.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
36. 36.True or false: an electric tower gets its strength from arches or domes. (a) True (b) False
37. 37.🧺 Which of these is not needed for the paper bridge? (a) turmeric powder (b) two books (c) a ruler (d) coins
38. 38.True or false: one flat sheet makes a weak bridge. (a) True (b) False
39. 39.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
40. 40.True or false: a bridge truss gets its strength from triangles. (a) False (b) True

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