Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 634 · 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) coins (b) a balloon (c) turmeric powder (d) a mirror
2. 2.True or false: a magnet is needed for the paper bridge. (a) True (b) False
3. 3.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a magnet (c) a ruler (d) a mirror
4. 4.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) more (c) less (d) not at all
5. 5.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a round pillar (c) a hollow bird bone (d) a roof frame
6. 6.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
7. 7.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the square (c) the heart shape (d) the triangle
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) sheets of paper (c) coins (d) two books
9. 9.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) rolled paper tubes (c) paper with folded edges (d) one flat sheet
10. 10.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
11. 11.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a ruler (d) a battery cell
12. 12.🔍 Which is the odd one out? (a) a torn flat sheet (b) rolled paper tubes (c) paper with folded edges (d) a U-shaped channel
13. 13.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
14. 14.True or false: a mirror is not needed for the paper bridge. (a) True (b) False
15. 15.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we change it (c) we keep it the same
16. 16.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) an eggshell (c) an electric tower (d) a temple dome
17. 17.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a flat tissue (c) paper with folded edges (d) a U-shaped channel
18. 18.True or false: an eggshell gets its strength from triangles. (a) True (b) False
19. 19.⚖️ 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 gap between books
20. 20.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
21. 21.⚖️ 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
22. 22.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a magnet (c) two books (d) sheets of paper
23. 23.⚖️ 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
24. 24.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
25. 25.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we change it (c) we keep it the same
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) yeast (d) coins
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
28. 28.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is made of steel (c) its curved arch shape (d) it is very hot
29. 29.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
30. 30.True or false: two books is needed for the paper bridge. (a) False (b) True
31. 31.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) a wet flat sheet (d) a zigzag-folded sheet
32. 32.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
33. 33.True or false: one flat sheet makes a strong bridge. (a) False (b) True
34. 34.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) the kind of coins (c) the shape of the paper (d) coins it holds
35. 35.🔍 Which is the odd one out? (a) a wet flat sheet (b) a U-shaped channel (c) one flat sheet (d) a flat tissue
36. 36.True or false: a flat tissue makes a weak bridge. (a) True (b) False
37. 37.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
38. 38.True or false: a ruler is needed for the paper bridge. (a) True (b) False
39. 39.🛟 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
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) sheets of paper (d) a magnet

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