Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 930 · 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.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) low and steady (c) high and wobbly (d) on top of a pet
2. 2.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) fewer coins (c) the same coins (d) only water
3. 3.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) rolled paper tubes (c) a wet flat sheet (d) one flat sheet
4. 4.🏗️ Where does an old stone bridge get its strength from? (a) arches and domes (b) tubes (c) triangles
5. 5.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a battery cell (c) turmeric powder (d) two books
6. 6.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) a temple dome (c) an old stone bridge (d) a bamboo pole
7. 7.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) skip washing (c) rub your eyes (d) lick your fingers
8. 8.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) the gap between books (c) the kind of coins (d) the shape of the paper
9. 9.🔍 Which is the odd one out? (a) a flat tissue (b) rolled paper tubes (c) a U-shaped channel (d) paper with folded edges
10. 10.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
11. 11.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a bamboo pole (c) a bridge truss (d) a hollow bird bone
12. 12.🌉 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
13. 13.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a balloon (c) sheets of paper (d) a ruler
14. 14.🧺 Which of these is not needed for the paper bridge? (a) coins (b) two books (c) a magnet (d) sheets of paper
15. 15.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a flat tissue (c) one flat sheet (d) paper with folded edges
16. 16.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) triangles (c) tubes
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) True (b) False
18. 18.🔍 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
19. 19.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is very hot (c) it is made of steel (d) its curved arch shape
20. 20.⚖️ 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
21. 21.True or false: an electric tower gets its strength from a tube shape. (a) False (b) True
22. 22.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) tubes (c) triangles
23. 23.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) a mirror (c) turmeric powder (d) yeast
24. 24.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) True (b) False
25. 25.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) where coins are placed (c) the kind of coins (d) the kind of paper
26. 26.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) a mirror (d) two books
27. 27.True or false: a bamboo pole gets its strength from arches or domes. (a) True (b) False
28. 28.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) yeast (c) a magnet (d) coins
29. 29.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) a round pillar (c) a temple dome (d) an electric tower
30. 30.True or false: a roof frame gets its strength from a tube shape. (a) False (b) True
31. 31.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we change it (c) we keep it the same
32. 32.🔍 Which is the odd one out? (a) a wet flat sheet (b) paper with folded edges (c) rolled paper tubes (d) a U-shaped channel
33. 33.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) two books (d) a magnet
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.True or false: an old stone bridge gets its strength from triangles. (a) False (b) True
36. 36.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
37. 37.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of coins (b) coins it holds (c) the shape of the paper
38. 38.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
39. 39.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) a flat tissue (b) a torn flat sheet (c) a zigzag-folded sheet (d) a wet flat sheet

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