Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 259 · 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.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
2. 2.🏗️ Which of these gets its strength from triangles? (a) a roof frame (b) an eggshell (c) a hollow bird bone (d) an old stone bridge
3. 3.True or false: two books is not needed for the paper bridge. (a) False (b) True
4. 4.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a temple dome (c) a roof frame (d) a hollow bird bone
5. 5.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) yeast (c) a mirror (d) two books
6. 6.🏗️ Which of these gets its strength from a tube shape? (a) a bamboo pole (b) an eggshell (c) a temple dome (d) a bridge truss
7. 7.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a bridge truss (c) a bamboo pole (d) an eggshell
8. 8.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) fewer coins (d) more coins
9. 9.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a ruler (d) a magnet
10. 10.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
11. 11.🌉 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
12. 12.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
13. 13.True or false: a bridge truss gets its strength from arches or domes. (a) True (b) False
14. 14.⚖️ 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
15. 15.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False
16. 16.True or false: coins is not needed for the paper bridge. (a) False (b) True
17. 17.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) a mirror (d) a ruler
18. 18.True or false: yeast is needed for the paper bridge. (a) True (b) False
19. 19.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) more (d) the same number of
20. 20.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the heart shape (c) the star (d) the triangle
21. 21.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
22. 22.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
23. 23.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) sheets of paper (c) a magnet (d) a balloon
24. 24.⚖️ 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
25. 25.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) low and steady (d) on a stool edge
26. 26.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
28. 28.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
29. 29.True or false: coins is needed for the paper bridge. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) a flat tissue (b) a wet flat sheet (c) a zigzag-folded sheet (d) a torn flat sheet
31. 31.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
32. 32.True or false: a flat tissue makes a strong bridge. (a) False (b) True
33. 33.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) a wet flat sheet (d) rolled paper tubes
34. 34.True or false: one flat sheet makes a weak bridge. (a) False (b) True
35. 35.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) lick your fingers (c) wash your hands (d) rub your eyes
36. 36.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) coins (c) sheets of paper (d) a ruler
37. 37.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) tubes (c) triangles
38. 38.True or false: a flat tissue makes a weak bridge. (a) True (b) False
39. 39.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) the kind of coins (c) coins it holds (d) where coins are placed
40. 40.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False

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