Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 75 · 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 torn flat sheet (b) a zigzag-folded sheet (c) paper with folded edges (d) rolled paper tubes
2. 2.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) triangles (c) arches and domes
3. 3.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) on a stool edge (c) low and steady (d) high and wobbly
4. 4.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) turmeric powder (c) a mirror (d) two books
5. 5.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a battery cell (d) sheets of paper
7. 7.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it gets stronger (c) it sags and falls (d) it turns to card
8. 8.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
9. 9.🔍 Which is the odd one out? (a) paper with folded edges (b) a wet flat sheet (c) a U-shaped channel (d) rolled paper tubes
10. 10.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) True (b) False
11. 11.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
12. 12.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we keep it the same (b) we change it (c) we measure it
13. 13.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
14. 14.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) yeast (c) a battery cell (d) coins
15. 15.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we keep it the same (b) we measure it (c) we change it
16. 16.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) arches and domes (c) tubes
17. 17.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) where coins are placed (c) the shape of the paper (d) the kind of paper
18. 18.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
19. 19.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) its curved arch shape (c) it is very hot (d) it is made of steel
20. 20.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) False (b) True
21. 21.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True
22. 22.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
23. 23.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
24. 24.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we change it (c) we keep it the same
25. 25.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) yeast (c) turmeric powder (d) sheets of paper
26. 26.True or false: a magnet is needed for the paper bridge. (a) True (b) False
27. 27.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it wet (c) folds make it stiffer (d) folds are magnetic
28. 28.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
29. 29.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the shape of the paper (c) the kind of coins (d) the gap between books
30. 30.True or false: a magnet is not needed for the paper bridge. (a) True (b) False
31. 31.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
32. 32.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) where coins are placed
33. 33.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) a battery cell (d) coins
34. 34.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
35. 35.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
36. 36.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
37. 37.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a flat tissue (c) a torn flat sheet (d) a zigzag-folded sheet
38. 38.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
39. 39.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we keep it the same (c) we measure it
40. 40.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True

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