Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 560 · 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.True or false: a temple dome gets its strength from a tube shape. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) a U-shaped channel (b) paper with folded edges (c) a flat tissue (d) rolled paper tubes
3. 3.True or false: a bridge truss gets its strength from a tube shape. (a) False (b) True
4. 4.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
5. 5.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) less (c) more (d) upward
6. 6.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a battery cell (c) a ruler (d) yeast
7. 7.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
8. 8.True or false: a balloon is needed for the paper bridge. (a) True (b) False
9. 9.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) a magnet (d) sheets of paper
10. 10.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) high and wobbly (c) on top of a pet (d) on a stool edge
11. 11.🔍 Which is the odd one out? (a) rolled paper tubes (b) a zigzag-folded sheet (c) a U-shaped channel (d) a torn flat sheet
12. 12.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) the gap between books (c) where coins are placed (d) the shape of the paper
13. 13.⚖️ 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
14. 14.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) the gap between books (c) coins it holds (d) the shape of the paper
15. 15.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) arches and domes (c) triangles
16. 16.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) False (b) True
17. 17.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) turmeric powder (d) sheets of paper
19. 19.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds are magnetic (c) folds make it wet (d) folds make it stiffer
20. 20.True or false: turmeric powder is not needed for the paper bridge. (a) True (b) False
21. 21.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
22. 22.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
23. 23.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
24. 24.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we keep it the same (c) we measure it
25. 25.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
26. 26.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) fewer coins (c) more coins (d) the same coins
27. 27.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we keep it the same (c) we measure it
28. 28.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) a U-shaped channel (c) rolled paper tubes (d) paper with folded edges
29. 29.True or false: a battery cell is not needed for the paper bridge. (a) True (b) False
30. 30.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a zigzag-folded sheet (c) a flat tissue (d) a wet flat sheet
31. 31.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the triangle (c) the square (d) the heart shape
32. 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a battery cell (d) a ruler
33. 33.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) lick your fingers (d) skip washing
34. 34.True or false: a wet flat sheet makes a weak bridge. (a) True (b) False
35. 35.True or false: a magnet is not needed for the paper bridge. (a) True (b) False
36. 36.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
37. 37.True or false: an electric tower gets its strength from triangles. (a) False (b) True
38. 38.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) an eggshell (c) a bridge truss (d) a hollow bird bone
39. 39.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a U-shaped channel (c) paper with folded edges (d) a wet flat sheet
40. 40.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) a zigzag-folded sheet (c) paper with folded edges (d) a U-shaped channel

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