Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 233 · 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.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) the kind of coins (c) where coins are placed (d) the shape of the paper
2. 2.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a bamboo pole (c) an eggshell (d) a roof frame
3. 3.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
4. 4.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is very hot (c) it is magnetic (d) its curved arch shape
5. 5.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
6. 6.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
7. 7.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) True (b) False
8. 8.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
9. 9.🔍 Which is the odd one out? (a) a wet flat sheet (b) a flat tissue (c) rolled paper tubes (d) a torn flat sheet
10. 10.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
11. 11.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) more (c) not at all (d) less
12. 12.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
13. 13.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we measure it (c) we keep it the same
14. 14.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) a magnet (d) a ruler
15. 15.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
16. 16.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) paper with folded edges (b) a zigzag-folded sheet (c) a torn flat sheet (d) rolled paper tubes
18. 18.True or false: a magnet is needed for the paper bridge. (a) True (b) False
19. 19.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) coins it holds (c) the gap between books (d) the kind of coins
20. 20.⚖️ 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
21. 21.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the triangle (c) the star (d) the square
22. 22.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a bamboo pole (c) an old stone bridge (d) a hollow bird bone
23. 23.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) wash your hands (c) lick your fingers (d) rub your eyes
24. 24.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) yeast (c) a mirror (d) a ruler
25. 25.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
26. 26.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it turns to card (c) it gets stronger (d) it sags and falls
27. 27.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a ruler (c) sheets of paper (d) turmeric powder
28. 28.True or false: an eggshell gets its strength from a tube shape. (a) True (b) False
29. 29.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we keep it the same (b) we change it (c) we measure it
30. 30.True or false: a flat tissue makes a strong bridge. (a) False (b) True
31. 31.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) paper with folded edges (b) a wet flat sheet (c) a zigzag-folded sheet (d) a U-shaped channel
33. 33.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a ruler (c) a battery cell (d) coins
34. 34.🧺 Which of these is needed for the paper bridge? (a) two books (b) turmeric powder (c) yeast (d) a mirror
35. 35.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) coins (c) a ruler (d) sheets of paper
36. 36.True or false: two books is not needed for the paper bridge. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) paper with folded edges (b) a flat tissue (c) a U-shaped channel (d) a zigzag-folded sheet
38. 38.🌉 Which of these makes a strong bridge? (a) paper with folded edges (b) a flat tissue (c) one flat sheet (d) a torn flat sheet
39. 39.True or false: a roof frame gets its strength from triangles. (a) True (b) False
40. 40.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a zigzag-folded sheet (c) rolled paper tubes (d) one flat sheet

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