Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 888 · 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 makes a strong bridge? (a) paper with folded edges (b) a flat tissue (c) a torn flat sheet (d) a wet flat sheet
2. 2.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) more coins (c) the same coins (d) only water
3. 3.True or false: two books is not needed for the paper bridge. (a) False (b) True
4. 4.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) an old stone bridge (c) an eggshell (d) a hollow bird bone
5. 5.True or false: a magnet is needed for the paper bridge. (a) False (b) True
6. 6.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it floats up (c) it sags and falls (d) it turns to card
7. 7.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the shape of the paper (b) coins it holds (c) the gap between books (d) the kind of paper
8. 8.🏗️ Which of these gets its strength from a tube shape? (a) a hollow bird bone (b) an old stone bridge (c) an electric tower (d) a temple dome
9. 9.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) sheets of paper (d) a balloon
10. 10.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds add glue (c) folds make it stiffer (d) folds make it wet
11. 11.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) more (c) less (d) not at all
12. 12.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) the same number of (c) fewer (d) zero
13. 13.True or false: coins is needed for the paper bridge. (a) True (b) False
14. 14.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True
15. 15.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) True (b) False
16. 16.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) coins it holds (c) the kind of coins (d) the shape of the paper
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) True (b) False
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) sheets of paper (d) a mirror
19. 19.🔍 Which is the odd one out? (a) a torn flat sheet (b) a flat tissue (c) paper with folded edges (d) one flat sheet
20. 20.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
21. 21.🏗️ Where does a temple dome get its strength from? (a) triangles (b) arches and domes (c) tubes
22. 22.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a zigzag-folded sheet (c) one flat sheet (d) a wet flat sheet
23. 23.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
24. 24.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
25. 25.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a battery cell (c) a balloon (d) sheets of paper
26. 26.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
27. 27.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
28. 28.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
29. 29.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
30. 30.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
31. 31.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) triangles (c) arches and domes
32. 32.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
33. 33.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) an old stone bridge (c) an electric tower (d) a round pillar
34. 34.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
35. 35.⚖️ 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 change it (c) we keep it the same
36. 36.⚖️ 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
37. 37.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we measure it (c) we keep it the same
38. 38.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we measure it (c) we keep it the same
39. 39.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a round pillar (c) a bamboo pole (d) a roof frame
40. 40.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) low and steady (d) on a stool edge

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