Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 209 · 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 is needed for the paper bridge? (a) turmeric powder (b) two books (c) a battery cell (d) a mirror
2. 2.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) a wet flat sheet (d) a zigzag-folded sheet
3. 3.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a flat tissue (c) a wet flat sheet (d) rolled paper tubes
4. 4.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
5. 5.⚖️ 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
6. 6.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) a temple dome (c) a bamboo pole (d) an electric tower
7. 7.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) an electric tower (c) a temple dome (d) a round pillar
8. 8.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a zigzag-folded sheet (c) paper with folded edges (d) one flat sheet
9. 9.True or false: an electric tower gets its strength from triangles. (a) True (b) False
10. 10.⚖️ 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
11. 11.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
12. 12.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) an old stone bridge (c) a temple dome (d) an eggshell
13. 13.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) False (b) True
14. 14.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a magnet (c) a mirror (d) a ruler
15. 15.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) where coins are placed (c) the shape of the paper
16. 16.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
17. 17.🏗️ Where does a temple dome get its strength from? (a) tubes (b) triangles (c) arches and domes
18. 18.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) tubes (c) triangles
19. 19.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) the same number of (c) more (d) zero
20. 20.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the shape of the paper (c) the kind of coins (d) where coins are placed
21. 21.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
22. 22.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
23. 23.🌉 Which of these makes a strong bridge? (a) a zigzag-folded sheet (b) a torn flat sheet (c) a flat tissue (d) a wet flat sheet
24. 24.🌉 Which of these makes a strong bridge? (a) paper with folded edges (b) a flat tissue (c) one flat sheet (d) a torn flat sheet
25. 25.⚖️ 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
26. 26.True or false: a balloon is needed for the paper bridge. (a) True (b) False
27. 27.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we measure it (c) we keep it the same
28. 28.🔮 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
29. 29.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) wash your hands (c) lick your fingers (d) skip washing
30. 30.🧺 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) a balloon
31. 31.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) sheets of paper (d) a balloon
32. 32.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a bamboo pole (c) an old stone bridge (d) a round pillar
33. 33.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) fewer coins (d) more coins
34. 34.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
35. 35.True or false: yeast is needed for the paper bridge. (a) True (b) False
36. 36.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it turns to card (c) it gets stronger (d) it sags and falls
37. 37.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) a magnet (d) coins
38. 38.⚖️ 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
39. 39.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) a mirror (d) sheets of paper

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