Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 172 · 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.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
2. 2.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
3. 3.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
4. 4.🔍 Which is the odd one out? (a) a U-shaped channel (b) a zigzag-folded sheet (c) rolled paper tubes (d) one flat sheet
5. 5.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a hollow bird bone (c) a roof frame (d) an eggshell
6. 6.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
7. 7.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) sheets of paper (d) a balloon
9. 9.🏗️ Where does a temple dome get its strength from? (a) triangles (b) tubes (c) arches and domes
10. 10.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) a hollow bird bone (c) an eggshell (d) a bamboo pole
11. 11.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a ruler (c) a magnet (d) turmeric powder
12. 12.True or false: a round pillar gets its strength from a tube shape. (a) False (b) True
13. 13.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we measure it (c) we keep it the same
14. 14.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) the same number of (d) more
15. 15.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
16. 16.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it sags and falls (c) it gets stronger (d) it floats up
17. 17.True or false: a roof frame gets its strength from a tube shape. (a) False (b) True
18. 18.🔺 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
19. 19.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) paper with folded edges (c) a wet flat sheet (d) a zigzag-folded sheet
20. 20.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) high and wobbly (d) low and steady
21. 21.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
22. 22.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) turmeric powder (c) a balloon (d) a mirror
23. 23.🌉 Which of these makes a weak bridge? (a) a torn flat sheet (b) a U-shaped channel (c) a zigzag-folded sheet (d) rolled paper tubes
24. 24.⚖️ 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 measure it (c) we change it
25. 25.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) skip washing (d) lick your fingers
26. 26.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is the one thing we change. (a) False (b) True
27. 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) yeast (d) two books
28. 28.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we keep it the same (b) we change it (c) we measure it
29. 29.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it stiffer (c) folds add glue (d) folds make it wet
30. 30.True or false: an eggshell gets its strength from arches or domes. (a) True (b) False
31. 31.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we measure it (c) we keep it the same
32. 32.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
33. 33.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
34. 34.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) two books (d) a magnet
35. 35.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) a mirror (d) two books
36. 36.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the kind of coins (c) coins it holds
37. 37.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
38. 38.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) a battery cell (d) a ruler
39. 39.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
40. 40.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) True (b) False

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