Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 745 · 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.True or false: a mirror is needed for the paper bridge. (a) True (b) False
2. 2.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) False (b) True
3. 3.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is made of steel (c) it is magnetic (d) it is very hot
4. 4.True or false: coins is needed for the paper bridge. (a) False (b) True
5. 5.🏗️ Which of these gets its strength from a tube shape? (a) a bamboo pole (b) a bridge truss (c) an old stone bridge (d) an electric tower
6. 6.⚖️ 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
7. 7.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a balloon (d) two books
8. 8.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
9. 9.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we keep it the same (c) we measure it
10. 10.⚖️ 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
11. 11.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a bridge truss (c) an old stone bridge (d) a bamboo pole
12. 12.⚖️ 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
13. 13.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) low and steady (c) high and wobbly (d) on a stool edge
14. 14.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) coins (c) a ruler (d) sheets of paper
15. 15.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
16. 16.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
17. 17.⚖️ 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
18. 18.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) an electric tower (c) an old stone bridge (d) a bamboo pole
19. 19.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) a zigzag-folded sheet (c) a U-shaped channel (d) rolled paper tubes
20. 20.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a bridge truss (c) a temple dome (d) a round pillar
21. 21.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
22. 22.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we keep it the same (b) we change it (c) we measure it
23. 23.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
24. 24.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) yeast (c) a magnet (d) sheets of paper
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.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it wet (c) folds are magnetic (d) folds make it stiffer
27. 27.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
28. 28.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a roof frame (c) a bamboo pole (d) a round pillar
29. 29.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) True (b) False
30. 30.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
31. 31.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) turmeric powder (d) sheets of paper
32. 32.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
33. 33.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a U-shaped channel (c) a torn flat sheet (d) one flat sheet
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) True (b) False
35. 35.🔺 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
36. 36.⚖️ 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
37. 37.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
38. 38.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of paper (b) the shape of the paper (c) coins it holds
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) coins (c) a ruler (d) two books

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