Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 950 · 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) a balloon (b) turmeric powder (c) sheets of paper (d) a mirror
2. 2.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) turmeric powder (d) two books
3. 3.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) one flat sheet (c) a U-shaped channel (d) a zigzag-folded sheet
4. 4.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
5. 5.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a zigzag-folded sheet (c) a flat tissue (d) a U-shaped channel
6. 6.🔍 Which is the odd one out? (a) rolled paper tubes (b) paper with folded edges (c) a U-shaped channel (d) a wet flat sheet
7. 7.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the triangle (c) the square (d) the heart shape
8. 8.True or false: coins is needed for the paper bridge. (a) True (b) False
9. 9.True or false: an eggshell gets its strength from triangles. (a) False (b) True
10. 10.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
11. 11.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) yeast (d) coins
13. 13.⚖️ 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
14. 14.True or false: a hollow bird bone gets its strength from triangles. (a) True (b) False
15. 15.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds add glue (c) folds are magnetic (d) folds make it stiffer
16. 16.True or false: an electric tower gets its strength from triangles. (a) True (b) False
17. 17.🔮 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
18. 18.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the gap between books (c) the shape of the paper
19. 19.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) its curved arch shape (c) it is made of steel (d) it is magnetic
20. 20.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
21. 21.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) on a stool edge (d) low and steady
22. 22.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) one flat sheet (c) paper with folded edges (d) rolled paper tubes
23. 23.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
24. 24.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
25. 25.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) an electric tower (c) a temple dome (d) a bamboo pole
26. 26.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
27. 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) sheets of paper (c) a ruler (d) coins
28. 28.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a magnet (c) yeast (d) a ruler
29. 29.True or false: a roof frame gets its strength from arches or domes. (a) True (b) False
30. 30.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
31. 31.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) a ruler (d) a mirror
32. 32.🔍 Which is the odd one out? (a) a wet flat sheet (b) one flat sheet (c) rolled paper tubes (d) a flat tissue
33. 33.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) fewer (c) zero (d) more
34. 34.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) the shape of the paper (c) the kind of coins (d) the kind of paper
35. 35.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
36. 36.🏗️ Which of these gets its strength from triangles? (a) a roof frame (b) a temple dome (c) an eggshell (d) a round pillar
37. 37.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we keep it the same (b) we measure it (c) we change it
38. 38.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
39. 39.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) a flat tissue (d) rolled paper tubes
40. 40.True or false: an eggshell gets its strength from arches or domes. (a) False (b) True

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