Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 678 · 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.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on top of a pet (c) high and wobbly (d) on a stool edge
2. 2.⚖️ 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 change it (c) we measure it
3. 3.True or false: a bamboo pole gets its strength from arches or domes. (a) False (b) True
4. 4.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is very hot (c) it is magnetic (d) it is made of steel
5. 5.⚖️ 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) where coins are placed
6. 6.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
7. 7.True or false: a magnet is not needed for the paper bridge. (a) True (b) False
8. 8.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we change it (c) we keep it the same
9. 9.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
10. 10.True or false: a temple dome gets its strength from a tube shape. (a) False (b) True
11. 11.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a battery cell (c) a magnet (d) sheets of paper
12. 12.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it gets stronger (c) it sags and falls (d) it turns to card
13. 13.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
14. 14.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the kind of coins (c) coins it holds
15. 15.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) less (c) not at all (d) upward
16. 16.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True
17. 17.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
18. 18.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
19. 19.True or false: an eggshell gets its strength from triangles. (a) True (b) False
20. 20.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
21. 21.🏗️ Where does a temple dome get its strength from? (a) triangles (b) tubes (c) arches and domes
22. 22.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
23. 23.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
24. 24.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds are magnetic (c) folds make it wet (d) folds add glue
25. 25.True or false: an old stone bridge gets its strength from triangles. (a) False (b) True
26. 26.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) an electric tower (c) a round pillar (d) an eggshell
27. 27.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
28. 28.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the square (c) the heart shape (d) the star
29. 29.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) more coins (c) fewer coins (d) the same coins
30. 30.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) True (b) False
31. 31.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) a torn flat sheet (d) rolled paper tubes
32. 32.🔍 Which is the odd one out? (a) paper with folded edges (b) a wet flat sheet (c) a flat tissue (d) one flat sheet
33. 33.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) a battery cell (d) coins
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a mirror (c) sheets of paper (d) two books
35. 35.True or false: yeast is needed for the paper bridge. (a) True (b) False
36. 36.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
37. 37.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) turmeric powder (d) coins
39. 39.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) lick your fingers (c) wash your hands (d) rub your eyes
40. 40.🏗️ Where does an electric tower get its strength from? (a) triangles (b) arches and domes (c) tubes

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