Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 88 · 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.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) tubes (c) arches and domes
2. 2.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) its curved arch shape (c) it is very hot (d) it is made of steel
3. 3.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) rolled paper tubes (d) one flat sheet
4. 4.⚖️ 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
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) where coins are placed (c) coins it holds
6. 6.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
7. 7.True or false: yeast is needed for the paper bridge. (a) False (b) True
8. 8.True or false: a battery cell is needed for the paper bridge. (a) True (b) False
9. 9.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) yeast (d) two books
10. 10.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
11. 11.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) one flat sheet (b) a flat tissue (c) paper with folded edges (d) a torn flat sheet
13. 13.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a magnet (c) a mirror (d) sheets of paper
14. 14.True or false: an electric tower gets its strength from a tube shape. (a) True (b) False
15. 15.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
16. 16.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it sags and falls (c) it gets stronger (d) it turns to card
17. 17.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
18. 18.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) more (c) the same number of (d) zero
19. 19.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a roof frame (c) a bamboo pole (d) a round pillar
20. 20.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
21. 21.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
22. 22.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True
23. 23.🔺 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 triangle (d) the square
24. 24.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False
25. 25.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
26. 26.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) tubes (c) triangles
27. 27.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
28. 28.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) low and steady (c) on top of a pet (d) high and wobbly
29. 29.True or false: two books is not needed for the paper bridge. (a) False (b) True
30. 30.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is the one thing we change. (a) False (b) True
31. 31.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) not at all (c) more (d) upward
32. 32.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) two books (c) a battery cell (d) a ruler
33. 33.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a bridge truss (c) a bamboo pole (d) an eggshell
34. 34.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
35. 35.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
36. 36.True or false: a bamboo pole gets its strength from arches or domes. (a) False (b) True
37. 37.🧺 Which of these is not needed for the paper bridge? (a) yeast (b) a ruler (c) sheets of paper (d) two books
38. 38.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
39. 39.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we measure it (c) we change it
40. 40.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge

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