Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 191 · 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.True or false: a ruler is needed for the paper bridge. (a) True (b) False
2. 2.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
3. 3.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) upward (c) more (d) less
4. 4.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
5. 5.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
6. 6.🔍 Which is the odd one out? (a) one flat sheet (b) a zigzag-folded sheet (c) a wet flat sheet (d) a torn flat sheet
7. 7.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) coins (c) a balloon (d) a magnet
8. 8.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) False (b) True
9. 9.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) rolled paper tubes (c) a torn flat sheet (d) a wet flat sheet
10. 10.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is made of steel (c) it is magnetic (d) its curved arch shape
11. 11.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the kind of paper (c) the kind of coins (d) the gap between books
12. 12.🔍 Which is the odd one out? (a) a U-shaped channel (b) one flat sheet (c) rolled paper tubes (d) a zigzag-folded sheet
13. 13.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we keep it the same (c) we change it
14. 14.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we keep it the same (c) we change it
15. 15.🔺 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
16. 16.True or false: two books is not needed for the paper bridge. (a) True (b) False
17. 17.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we change it (c) we keep it the same
18. 18.🔍 Which is the odd one out? (a) a U-shaped channel (b) a torn flat sheet (c) a flat tissue (d) a wet flat sheet
19. 19.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
20. 20.True or false: coins is needed for the paper bridge. (a) True (b) False
21. 21.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) an old stone bridge (c) a bamboo pole (d) a roof frame
22. 22.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a mirror (c) two books (d) a magnet
23. 23.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
24. 24.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) a ruler (c) coins (d) sheets of paper
25. 25.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) two books (d) a battery cell
26. 26.True or false: a hollow bird bone gets its strength from triangles. (a) True (b) False
27. 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) two books (c) sheets of paper (d) coins
28. 28.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we keep it the same (c) we change it
29. 29.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it wet (c) folds make it stiffer (d) folds add glue
30. 30.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) only water (d) fewer coins
31. 31.True or false: a roof frame gets its strength from arches or domes. (a) True (b) False
32. 32.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
33. 33.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
34. 34.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
35. 35.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) turmeric powder (c) a battery cell (d) a ruler
36. 36.True or false: an eggshell gets its strength from a tube shape. (a) False (b) True
37. 37.True or false: a flat tissue makes a weak bridge. (a) False (b) True
38. 38.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
39. 39.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) coins it holds (c) the shape of the paper (d) the kind of coins
40. 40.🔍 Which is the odd one out? (a) a torn flat sheet (b) a U-shaped channel (c) rolled paper tubes (d) paper with folded edges

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