Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 466 · 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.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) the same coins (c) only water (d) more coins
2. 2.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) arches and domes (c) tubes
3. 3.⚖️ 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 keep it the same (c) we change it
4. 4.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
5. 5.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) the same number of (d) zero
6. 6.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a battery cell (c) a ruler (d) sheets of paper
7. 7.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) a ruler (c) sheets of paper (d) coins
8. 8.🔍 Which is the odd one out? (a) a torn flat sheet (b) a flat tissue (c) a U-shaped channel (d) a wet flat sheet
9. 9.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) low and steady (d) on top of a pet
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) two books (d) turmeric powder
11. 11.⚖️ 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 change it (c) we measure it
12. 12.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the kind of paper (c) the shape of the paper (d) the kind of coins
13. 13.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we keep it the same (c) we change it
14. 14.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds make it stiffer (c) folds add glue (d) folds are magnetic
15. 15.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
16. 16.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the heart shape (c) the star (d) the triangle
17. 17.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
18. 18.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) True (b) False
19. 19.True or false: rolled paper tubes makes a strong bridge. (a) True (b) False
20. 20.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
21. 21.True or false: a temple dome gets its strength from arches or domes. (a) False (b) True
22. 22.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) more (c) less (d) upward
23. 23.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a balloon (c) two books (d) sheets of paper
24. 24.True or false: paper with folded edges makes a strong bridge. (a) True (b) False
25. 25.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the kind of paper (c) coins it holds
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) a ruler (c) two books (d) coins
27. 27.🔍 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
28. 28.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) where coins are placed (c) the kind of paper (d) the shape of the paper
29. 29.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a mirror (d) a ruler
30. 30.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) an old stone bridge (c) a bamboo pole (d) a bridge truss
31. 31.🧺 Which of these is needed for the paper bridge? (a) coins (b) a magnet (c) a battery cell (d) a mirror
32. 32.🏗️ Where does an electric tower get its strength from? (a) tubes (b) arches and domes (c) triangles
33. 33.🔍 Which is the odd one out? (a) one flat sheet (b) paper with folded edges (c) a wet flat sheet (d) a flat tissue
34. 34.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a bamboo pole (c) a hollow bird bone (d) a bridge truss
35. 35.🔍 Which is the odd one out? (a) a U-shaped channel (b) paper with folded edges (c) a flat tissue (d) rolled paper tubes
36. 36.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
37. 37.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a U-shaped channel (c) one flat sheet (d) rolled paper tubes
38. 38.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
39. 39.True or false: a round pillar gets its strength from a tube shape. (a) False (b) True
40. 40.🏗️ Which of these gets its strength from a tube shape? (a) a round pillar (b) an eggshell (c) a bridge truss (d) an old stone bridge

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