Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 977 · 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: an old stone bridge gets its strength from a tube shape. (a) True (b) False
2. 2.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds add glue (c) folds are magnetic (d) folds make it stiffer
3. 3.⚖️ 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 measure it (c) we change it
4. 4.⚖️ 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
5. 5.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) an old stone bridge (c) an electric tower (d) a bamboo pole
6. 6.True or false: an electric tower gets its strength from a tube shape. (a) False (b) True
7. 7.🧺 Which of these is not needed for the paper bridge? (a) a mirror (b) two books (c) coins (d) sheets of paper
8. 8.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) the same number of (d) zero
9. 9.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) low and steady (c) on top of a pet (d) high and wobbly
10. 10.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
11. 11.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) a round pillar (c) a bridge truss (d) a bamboo pole
12. 12.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) False (b) True
13. 13.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) turmeric powder (c) a ruler (d) two books
14. 14.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) the gap between books (c) the shape of the paper (d) the kind of paper
15. 15.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) a torn flat sheet (d) rolled paper tubes
16. 16.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) True (b) False
17. 17.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) fewer coins (d) only water
18. 18.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) the gap between books
19. 19.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
20. 20.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) an old stone bridge (c) a roof frame (d) a temple dome
21. 21.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) lick your fingers (c) rub your eyes (d) wash your hands
22. 22.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
23. 23.🔍 Which is the odd one out? (a) one flat sheet (b) a torn flat sheet (c) a U-shaped channel (d) a flat tissue
24. 24.True or false: a balloon is needed for the paper bridge. (a) True (b) False
25. 25.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a flat tissue (c) rolled paper tubes (d) one flat sheet
26. 26.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) two books (d) a magnet
27. 27.🔍 Which is the odd one out? (a) a U-shaped channel (b) paper with folded edges (c) a wet flat sheet (d) rolled paper tubes
28. 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a balloon (c) a ruler (d) coins
29. 29.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
30. 30.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
31. 31.True or false: paper with folded edges makes a weak bridge. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) a wet flat sheet (b) a flat tissue (c) one flat sheet (d) rolled paper tubes
33. 33.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the triangle (c) the star (d) the square
34. 34.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the kind of paper (c) the shape of the paper
35. 35.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) a battery cell (d) sheets of paper
36. 36.True or false: a bamboo pole gets its strength from a tube shape. (a) True (b) False
37. 37.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) the kind of paper (c) the gap between books (d) coins it holds
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) coins (c) sheets of paper (d) two books
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is the one thing we change. (a) False (b) True
40. 40.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) tubes (c) arches and domes

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