Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 771 · 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.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a torn flat sheet (d) paper with folded edges
2. 2.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
3. 3.🧺 Which of these is not needed for the paper bridge? (a) two books (b) turmeric powder (c) a ruler (d) coins
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) coins (d) a balloon
5. 5.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) upward (c) more (d) not at all
6. 6.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
7. 7.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) skip washing (c) wash your hands (d) rub your eyes
8. 8.True or false: yeast is not needed for the paper bridge. (a) True (b) False
9. 9.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a ruler (c) sheets of paper (d) a mirror
10. 10.True or false: a U-shaped channel makes a strong bridge. (a) True (b) False
11. 11.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
12. 12.True or false: a flat tissue makes a weak bridge. (a) True (b) False
13. 13.True or false: two books is needed for the paper bridge. (a) True (b) False
14. 14.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
15. 15.🛟 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
16. 16.True or false: a roof frame gets its strength from triangles. (a) True (b) False
17. 17.🌉 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
18. 18.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a roof frame (c) a hollow bird bone (d) a temple dome
19. 19.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a balloon (c) yeast (d) two books
20. 20.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) coins (c) yeast (d) a magnet
21. 21.🏗️ Where does a round pillar get its strength from? (a) triangles (b) arches and domes (c) tubes
22. 22.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
23. 23.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is very hot (c) it is magnetic (d) its curved arch shape
24. 24.🧺 Which of these is not needed for the paper bridge? (a) yeast (b) coins (c) sheets of paper (d) a ruler
25. 25.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) False (b) True
26. 26.🧺 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 magnet
27. 27.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True
28. 28.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a bridge truss (c) an electric tower (d) a round pillar
29. 29.True or false: coins is not needed for the paper bridge. (a) True (b) False
30. 30.True or false: a wet flat sheet makes a weak bridge. (a) True (b) False
31. 31.True or false: a mirror is needed for the paper bridge. (a) False (b) True
32. 32.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
33. 33.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) more (d) the same number of
34. 34.🔺 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 square (d) the triangle
35. 35.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) a hollow bird bone (c) a bamboo pole (d) a temple dome
36. 36.True or false: a magnet is needed for the paper bridge. (a) True (b) False
37. 37.🧺 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) coins
38. 38.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we change it (c) we measure it
39. 39.🧺 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) coins
40. 40.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed

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