Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 753 · 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 is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) one flat sheet (d) a U-shaped channel
2. 2.🏗️ Where does a temple dome get its strength from? (a) arches and domes (b) triangles (c) tubes
3. 3.🔍 Which is the odd one out? (a) a wet flat sheet (b) rolled paper tubes (c) one flat sheet (d) a flat tissue
4. 4.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) its curved arch shape (c) it is very hot (d) it is magnetic
5. 5.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) high and wobbly (c) on top of a pet (d) low and steady
6. 6.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the star (c) the square (d) the triangle
7. 7.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) lick your fingers (c) skip washing (d) rub your eyes
8. 8.🔍 Which is the odd one out? (a) rolled paper tubes (b) a U-shaped channel (c) a zigzag-folded sheet (d) a wet flat sheet
9. 9.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
10. 10.True or false: an eggshell gets its strength from a tube shape. (a) False (b) True
11. 11.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) a balloon (d) coins
12. 12.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
13. 13.🏗️ Where does an electric tower get its strength from? (a) triangles (b) arches and domes (c) tubes
14. 14.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we measure it (c) we change it
15. 15.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a zigzag-folded sheet (c) paper with folded edges (d) a wet flat sheet
16. 16.🔍 Which is the odd one out? (a) a flat tissue (b) paper with folded edges (c) rolled paper tubes (d) a U-shaped channel
17. 17.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) the same number of (d) more
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) a battery cell (d) sheets of paper
19. 19.⚖️ 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
20. 20.True or false: coins is not needed for the paper bridge. (a) True (b) False
21. 21.True or false: one flat sheet makes a weak bridge. (a) True (b) False
22. 22.True or false: a U-shaped channel makes a strong bridge. (a) True (b) False
23. 23.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) two books (c) yeast (d) a battery cell
24. 24.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
25. 25.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) upward (c) more (d) not at all
26. 26.True or false: yeast is not needed for the paper bridge. (a) True (b) False
27. 27.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a mirror (c) coins (d) two books
28. 28.🔍 Which is the odd one out? (a) a torn flat sheet (b) a wet flat sheet (c) paper with folded edges (d) one flat sheet
29. 29.True or false: two books is not needed for the paper bridge. (a) False (b) True
30. 30.True or false: a round pillar gets its strength from triangles. (a) False (b) True
31. 31.True or false: coins is needed for the paper bridge. (a) True (b) False
32. 32.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
33. 33.🌉 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
34. 34.True or false: a bamboo pole gets its strength from triangles. (a) False (b) True
35. 35.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) paper with folded edges (c) rolled paper tubes (d) a U-shaped channel
36. 36.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a torn flat sheet (c) a zigzag-folded sheet (d) a U-shaped channel
37. 37.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) arches and domes (c) tubes
38. 38.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
39. 39.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) the gap between books (c) the shape of the paper (d) the kind of paper
40. 40.🌉 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

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