Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 899 · 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 gets its strength from a tube shape? (a) a round pillar (b) a bridge truss (c) a temple dome (d) a roof frame
2. 2.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) a mirror (c) a balloon (d) a magnet
3. 3.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a flat tissue (c) paper with folded edges (d) a zigzag-folded sheet
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) yeast (d) a ruler
5. 5.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
6. 6.⚖️ 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
7. 7.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it gets stronger (c) it floats up (d) it sags and falls
8. 8.🔍 Which is the odd one out? (a) a torn flat sheet (b) a flat tissue (c) a wet flat sheet (d) rolled paper tubes
9. 9.🌉 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
10. 10.True or false: one flat sheet makes a weak bridge. (a) True (b) False
11. 11.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a bamboo pole (c) a temple dome (d) an old stone bridge
12. 12.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) more (c) zero (d) fewer
13. 13.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we measure it (b) we change it (c) we keep it the same
14. 14.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) coins it holds (c) the kind of coins (d) the gap between books
15. 15.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
16. 16.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
17. 17.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) an electric tower (c) a round pillar (d) a hollow bird bone
18. 18.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) paper with folded edges (c) one flat sheet (d) a U-shaped channel
19. 19.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) fewer coins (c) only water (d) the same coins
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a magnet (c) two books (d) a ruler
21. 21.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
22. 22.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) a temple dome (c) a hollow bird bone (d) a roof frame
23. 23.⚖️ 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
24. 24.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) arches and domes (c) tubes
25. 25.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
26. 26.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is very hot (c) its curved arch shape (d) it is magnetic
27. 27.⚖️ 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
28. 28.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a roof frame (c) a hollow bird bone (d) an old stone bridge
29. 29.⚖️ 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) the gap between books
30. 30.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
31. 31.🧺 Which of these is not needed for the paper bridge? (a) yeast (b) a ruler (c) sheets of paper (d) coins
32. 32.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
33. 33.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) a U-shaped channel (b) rolled paper tubes (c) a flat tissue (d) a zigzag-folded sheet
35. 35.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) yeast (c) a magnet (d) coins
36. 36.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) a battery cell (d) two books
37. 37.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a U-shaped channel (c) a flat tissue (d) one flat sheet
38. 38.True or false: a round pillar gets its strength from a tube shape. (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 shape of the paper (b) the kind of paper (c) coins it holds (d) where coins are placed
40. 40.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True

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