Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 219 · 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 is not needed for the paper bridge? (a) coins (b) a ruler (c) yeast (d) two books
2. 2.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of coins (b) the shape of the paper (c) coins it holds
3. 3.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
4. 4.True or false: a roof frame gets its strength from arches or domes. (a) True (b) False
5. 5.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the square (c) the heart shape (d) the star
6. 6.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) a U-shaped channel (c) rolled paper tubes (d) a zigzag-folded sheet
7. 7.🏗️ Where does an eggshell get its strength from? (a) triangles (b) tubes (c) arches and domes
8. 8.🏗️ Where does an old stone bridge get its strength from? (a) arches and domes (b) triangles (c) tubes
9. 9.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the gap between books (b) coins it holds (c) the shape of the paper
10. 10.True or false: a roof frame gets its strength from triangles. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) a wet flat sheet (b) rolled paper tubes (c) one flat sheet (d) a flat tissue
12. 12.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
13. 13.True or false: coins is not needed for the paper bridge. (a) False (b) True
14. 14.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
15. 15.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) coins (c) two books (d) sheets of paper
16. 16.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) rolled paper tubes (c) paper with folded edges (d) a flat tissue
17. 17.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a zigzag-folded sheet (c) a flat tissue (d) a wet flat sheet
18. 18.True or false: a temple dome gets its strength from triangles. (a) False (b) True
19. 19.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) the same number of (c) zero (d) fewer
20. 20.🌉 Which of these makes a weak bridge? (a) a torn flat sheet (b) paper with folded edges (c) a U-shaped channel (d) a zigzag-folded sheet
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a mirror (c) sheets of paper (d) a ruler
22. 22.🔍 Which is the odd one out? (a) a torn flat sheet (b) a wet flat sheet (c) a U-shaped channel (d) a flat tissue
23. 23.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) two books (c) sheets of paper (d) a ruler
24. 24.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
25. 25.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is magnetic (c) its curved arch shape (d) it is made of steel
26. 26.True or false: an electric tower gets its strength from triangles. (a) False (b) True
27. 27.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it floats up (c) it turns to card (d) it sags and falls
28. 28.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) the shape of the paper (c) the gap between books (d) coins it holds
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 add glue (d) folds make it stiffer
30. 30.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) the kind of paper (c) the gap between books (d) coins it holds
31. 31.🧺 Which of these is needed for the paper bridge? (a) two books (b) yeast (c) a magnet (d) a battery cell
32. 32.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we keep it the same (c) we measure it
33. 33.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we measure it (c) we keep it the same
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
35. 35.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) turmeric powder (c) a magnet (d) a ruler
36. 36.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
37. 37.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
38. 38.True or false: rolled paper tubes makes a strong bridge. (a) True (b) False
39. 39.True or false: yeast is needed for the paper bridge. (a) False (b) True
40. 40.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed

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