Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 750 · 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.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
2. 2.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) more (c) not at all (d) less
3. 3.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a zigzag-folded sheet (c) one flat sheet (d) a flat tissue
4. 4.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) rolled paper tubes (d) a flat tissue
5. 5.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
6. 6.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we measure it (c) we keep it the same
7. 7.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) a mirror (d) coins
8. 8.🔍 Which is the odd one out? (a) one flat sheet (b) a wet flat sheet (c) paper with folded edges (d) a flat tissue
9. 9.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) on top of a pet (d) low and steady
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a battery cell (c) sheets of paper (d) a ruler
11. 11.⚖️ 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
12. 12.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
13. 13.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) wash your hands (c) skip washing (d) rub your eyes
14. 14.True or false: a flat tissue makes a weak bridge. (a) True (b) False
15. 15.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
16. 16.True or false: one flat sheet makes a strong bridge. (a) True (b) False
17. 17.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is magnetic (c) it is very hot (d) it is made of steel
18. 18.⚖️ 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
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) coins (d) a mirror
20. 20.🔍 Which is the odd one out? (a) a U-shaped channel (b) a zigzag-folded sheet (c) a torn flat sheet (d) paper with folded edges
21. 21.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) a wet flat sheet (d) a U-shaped channel
22. 22.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) triangles (c) arches and domes
23. 23.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) sheets of paper (d) a magnet
24. 24.True or false: a round pillar gets its strength from triangles. (a) False (b) True
25. 25.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
26. 26.True or false: two books is not needed for the paper bridge. (a) False (b) True
27. 27.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds make it wet (c) folds are magnetic (d) folds add glue
28. 28.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
29. 29.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a wet flat sheet (c) a torn flat sheet (d) a flat tissue
30. 30.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
31. 31.🏗️ Where does a temple dome get its strength from? (a) tubes (b) arches and domes (c) triangles
32. 32.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we keep it the same (c) we change it
33. 33.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
34. 34.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) rolled paper tubes (c) a U-shaped channel (d) a zigzag-folded sheet
35. 35.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) more (c) fewer (d) the same number of
36. 36.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
37. 37.🧺 Which of these is not needed for the paper bridge? (a) a battery cell (b) sheets of paper (c) two books (d) coins
38. 38.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
39. 39.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a balloon (c) a ruler (d) a battery cell
40. 40.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we keep it the same (c) we change it

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