Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 933 · 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.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) a balloon (d) a ruler
2. 2.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
3. 3.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) two books (d) a mirror
4. 4.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a zigzag-folded sheet (c) one flat sheet (d) a torn flat sheet
5. 5.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) tubes (c) triangles
6. 6.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) less (c) upward (d) more
7. 7.True or false: a roof frame gets its strength from triangles. (a) False (b) True
8. 8.🛟 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
9. 9.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) more (d) the same number of
10. 10.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) turmeric powder (c) coins (d) sheets of paper
11. 11.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) only water (d) fewer coins
12. 12.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a round pillar (c) an electric tower (d) a temple dome
13. 13.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it wet (c) folds are magnetic (d) folds make it stiffer
14. 14.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
15. 15.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) turmeric powder (c) sheets of paper (d) a ruler
16. 16.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
17. 17.True or false: an eggshell gets its strength from triangles. (a) False (b) True
18. 18.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) where coins are placed
19. 19.🌉 Which of these makes a weak bridge? (a) a torn flat sheet (b) rolled paper tubes (c) a U-shaped channel (d) a zigzag-folded sheet
20. 20.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it gets stronger (c) it floats up (d) it turns to card
21. 21.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
22. 22.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
23. 23.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) a battery cell (d) a ruler
24. 24.True or false: a flat tissue makes a strong bridge. (a) True (b) False
25. 25.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) yeast (c) a ruler (d) a magnet
26. 26.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a temple dome (c) a bamboo pole (d) a roof frame
27. 27.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of paper (b) the shape of the paper (c) coins it holds
28. 28.🧺 Which of these is needed for the paper bridge? (a) two books (b) a balloon (c) turmeric powder (d) yeast
29. 29.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a zigzag-folded sheet (c) rolled paper tubes (d) one flat sheet
30. 30.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) arches and domes (c) triangles
31. 31.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) a bridge truss (c) an electric tower (d) an eggshell
32. 32.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) triangles (c) tubes
33. 33.True or false: a balloon is not needed for the paper bridge. (a) True (b) False
34. 34.🛟 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
35. 35.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
36. 36.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a mirror (c) a magnet (d) coins
37. 37.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
38. 38.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
39. 39.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
40. 40.True or false: a battery cell is needed for the paper bridge. (a) True (b) False

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