Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 21 · 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 needed for the paper bridge? (a) a balloon (b) a magnet (c) yeast (d) sheets of paper
2. 2.True or false: an electric tower gets its strength from arches or domes. (a) True (b) False
3. 3.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
4. 4.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) less (c) upward (d) not at all
5. 5.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
6. 6.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
7. 7.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
8. 8.🥚 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
9. 9.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on a stool edge (c) high and wobbly (d) on top of a pet
10. 10.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
11. 11.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a zigzag-folded sheet (c) paper with folded edges (d) a flat tissue
12. 12.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the gap between books (b) the shape of the paper (c) the kind of coins (d) the kind of paper
13. 13.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a hollow bird bone (c) an old stone bridge (d) an electric tower
14. 14.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
15. 15.🏗️ Where does a temple dome get its strength from? (a) tubes (b) arches and domes (c) triangles
16. 16.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) paper with folded edges (c) rolled paper tubes (d) a wet flat sheet
18. 18.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we change it (c) we measure it
19. 19.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we measure it (c) we change it
20. 20.⚖️ 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
21. 21.True or false: a round pillar gets its strength from triangles. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) one flat sheet (b) a U-shaped channel (c) a flat tissue (d) a torn flat sheet
23. 23.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a balloon (c) coins (d) turmeric powder
24. 24.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) yeast (c) sheets of paper (d) two books
25. 25.True or false: two books is not needed for the paper bridge. (a) True (b) False
26. 26.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
27. 27.🔍 Which is the odd one out? (a) paper with folded edges (b) a torn flat sheet (c) a flat tissue (d) one flat sheet
28. 28.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
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 kind of coins
30. 30.True or false: one flat sheet makes a weak bridge. (a) True (b) False
31. 31.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a magnet (c) two books (d) a ruler
32. 32.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
33. 33.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) coins it holds (c) the shape of the paper (d) the gap between books
34. 34.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
35. 35.🔍 Which is the odd one out? (a) a wet flat sheet (b) one flat sheet (c) a flat tissue (d) rolled paper tubes
36. 36.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) only water (d) fewer coins
37. 37.🏗️ Where does an eggshell get its strength from? (a) tubes (b) arches and domes (c) triangles
38. 38.True or false: a magnet is needed for the paper bridge. (a) False (b) True
39. 39.⚖️ 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
40. 40.True or false: an electric tower gets its strength from a tube shape. (a) False (b) True

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