Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 456 · 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 weak bridge? (a) a flat tissue (b) a U-shaped channel (c) rolled paper tubes (d) paper with folded edges
2. 2.🧺 Which of these is not needed for the paper bridge? (a) two books (b) yeast (c) coins (d) sheets of paper
3. 3.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) yeast (c) coins (d) a ruler
4. 4.⚖️ 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 measure it (c) we change it
5. 5.🔺 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 triangle (d) the square
6. 6.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on a stool edge (c) high and wobbly (d) on top of a pet
7. 7.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
8. 8.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
9. 9.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is made of steel (c) it is very hot (d) it is magnetic
10. 10.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) arches and domes (c) tubes
11. 11.True or false: two books is not needed for the paper bridge. (a) True (b) False
12. 12.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
13. 13.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) two books (c) coins (d) sheets of paper
14. 14.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the gap between books (c) the shape of the paper
15. 15.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) coins it holds (c) the gap between books (d) where coins are placed
16. 16.🔍 Which is the odd one out? (a) paper with folded edges (b) a zigzag-folded sheet (c) one flat sheet (d) rolled paper tubes
17. 17.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True
18. 18.True or false: a bridge truss gets its strength from arches or domes. (a) True (b) False
19. 19.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
20. 20.True or false: a roof frame gets its strength from a tube shape. (a) True (b) False
21. 21.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a battery cell (c) sheets of paper (d) turmeric powder
22. 22.🌉 Which of these makes a strong bridge? (a) a zigzag-folded sheet (b) one flat sheet (c) a flat tissue (d) a torn flat sheet
23. 23.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a wet flat sheet (c) one flat sheet (d) rolled paper tubes
24. 24.True or false: paper with folded edges makes a weak bridge. (a) True (b) False
25. 25.True or false: a temple dome gets its strength from triangles. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) paper with folded edges (b) a torn flat sheet (c) rolled paper tubes (d) a zigzag-folded sheet
27. 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) sheets of paper (d) a balloon
28. 28.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
29. 29.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds add glue (c) folds are magnetic (d) folds make it wet
30. 30.True or false: an electric tower gets its strength from triangles. (a) True (b) False
31. 31.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
32. 32.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) more coins (c) the same coins (d) only water
33. 33.🏗️ Which of these gets its strength from arches or domes? (a) an old stone bridge (b) a bridge truss (c) a roof frame (d) a hollow bird bone
34. 34.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
35. 35.True or false: a balloon is needed for the paper bridge. (a) False (b) True
36. 36.True or false: two books is needed for the paper bridge. (a) False (b) True
37. 37.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
38. 38.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a ruler (c) sheets of paper (d) turmeric powder
39. 39.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it turns to card (c) it floats up (d) it gets stronger
40. 40.True or false: an eggshell gets its strength from arches or domes. (a) True (b) False

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