Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 123 · 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? What do we do with “where coins are placed”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.🥚 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) it is very hot (d) its curved arch shape
3. 3.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on a stool edge (c) high and wobbly (d) on top of a pet
4. 4.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) triangles (c) arches and domes
5. 5.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
6. 6.True or false: turmeric powder is not needed for the paper bridge. (a) True (b) False
7. 7.True or false: a round pillar gets its strength from a tube shape. (a) False (b) True
8. 8.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) fewer coins (d) more coins
9. 9.🌉 Which of these makes a strong bridge? (a) paper with folded edges (b) a torn flat sheet (c) a flat tissue (d) one flat sheet
10. 10.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
11. 11.True or false: a hollow bird bone gets its strength from triangles. (a) False (b) True
12. 12.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) coins it holds (c) the kind of coins (d) where coins are placed
13. 13.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds make it stiffer (c) folds add glue (d) folds are magnetic
14. 14.True or false: a ruler is not needed for the paper bridge. (a) True (b) False
15. 15.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
16. 16.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) coins (c) sheets of paper (d) two books
17. 17.⚖️ 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
18. 18.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a roof frame (c) an eggshell (d) an old stone bridge
19. 19.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a torn flat sheet (c) a flat tissue (d) a U-shaped channel
20. 20.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
21. 21.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) an old stone bridge (c) an eggshell (d) an electric tower
22. 22.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
23. 23.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
24. 24.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a temple dome (c) a hollow bird bone (d) a bridge truss
25. 25.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we keep it the same (c) we change it
26. 26.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) arches and domes (c) triangles
27. 27.⚖️ 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 change it (c) we measure it
28. 28.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) rolled paper tubes (b) a torn flat sheet (c) paper with folded edges (d) a zigzag-folded sheet
30. 30.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) coins (c) yeast (d) two books
31. 31.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
32. 32.⚖️ 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 measure it (c) we change it
33. 33.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a magnet (c) a balloon (d) coins
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) coins (d) turmeric powder
35. 35.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a battery cell (c) two books (d) sheets of paper
36. 36.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a hollow bird bone (c) a bridge truss (d) a roof frame
37. 37.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
38. 38.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) upward (c) not at all (d) more
39. 39.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
40. 40.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it gets stronger (c) it floats up (d) it turns to card

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