Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 481 · 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 bamboo pole gets its strength from triangles. (a) True (b) False
2. 2.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) False (b) True
3. 3.🔮 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
4. 4.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
5. 5.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a mirror (c) a ruler (d) coins
7. 7.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a magnet (c) a mirror (d) coins
8. 8.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) True (b) False
9. 9.🔍 Which is the odd one out? (a) paper with folded edges (b) a zigzag-folded sheet (c) a torn flat sheet (d) rolled paper tubes
10. 10.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it turns to card (c) it sags and falls (d) it floats up
11. 11.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
12. 12.🌉 Which of these makes a strong bridge? (a) a zigzag-folded sheet (b) one flat sheet (c) a flat tissue (d) a wet flat sheet
13. 13.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) more coins (c) fewer coins (d) the same coins
14. 14.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
15. 15.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a balloon (c) coins (d) a ruler
16. 16.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) a ruler (c) two books (d) coins
17. 17.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
18. 18.⚖️ 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 paper
19. 19.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) a bamboo pole (c) a round pillar (d) a hollow bird bone
20. 20.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds are magnetic (c) folds add glue (d) folds make it stiffer
21. 21.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) False (b) True
22. 22.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) one flat sheet (c) a wet flat sheet (d) paper with folded edges
23. 23.🔍 Which is the odd one out? (a) a torn flat sheet (b) a wet flat sheet (c) a U-shaped channel (d) one flat sheet
24. 24.⚖️ 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 shape of the paper (d) the kind of paper
25. 25.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
26. 26.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a balloon (c) yeast (d) two books
27. 27.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
28. 28.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the square (c) the heart shape (d) the triangle
29. 29.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) the gap between books (c) where coins are placed (d) coins it holds
30. 30.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) high and wobbly (c) low and steady (d) on a stool edge
31. 31.True or false: a flat tissue makes a weak bridge. (a) True (b) False
32. 32.True or false: an eggshell gets its strength from arches or domes. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) rolled paper tubes (b) a wet flat sheet (c) paper with folded edges (d) a zigzag-folded sheet
34. 34.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a zigzag-folded sheet (c) one flat sheet (d) a U-shaped channel
35. 35.🏗️ Where does an electric tower get its strength from? (a) triangles (b) arches and domes (c) tubes
36. 36.True or false: coins is needed for the paper bridge. (a) False (b) True
37. 37.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
38. 38.True or false: a bridge truss gets its strength from arches or domes. (a) False (b) True
39. 39.True or false: a bamboo pole gets its strength from a tube shape. (a) True (b) False
40. 40.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) more (d) fewer

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