Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 352 · 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.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) yeast (c) a ruler (d) two books
2. 2.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (a) True (b) False
3. 3.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
4. 4.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
5. 5.⚖️ 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
6. 6.🔍 Which is the odd one out? (a) a torn flat sheet (b) a flat tissue (c) a U-shaped channel (d) a wet flat sheet
7. 7.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
8. 8.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a zigzag-folded sheet (c) one flat sheet (d) a flat tissue
9. 9.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) not at all (c) upward (d) more
10. 10.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
11. 11.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) wash your hands (c) rub your eyes (d) lick your fingers
12. 12.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) tubes (c) arches and domes
13. 13.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) where coins are placed (c) the shape of the paper (d) the kind of paper
14. 14.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it sags and falls (c) it gets stronger (d) it turns to card
15. 15.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
16. 16.True or false: a magnet is not needed for the paper bridge. (a) True (b) False
17. 17.🧺 Which of these is needed for the paper bridge? (a) a ruler (b) turmeric powder (c) a magnet (d) a battery cell
18. 18.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
19. 19.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
20. 20.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) a round pillar (c) an electric tower (d) an old stone bridge
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 square (c) the star (d) the triangle
22. 22.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a bamboo pole (c) a hollow bird bone (d) an eggshell
23. 23.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) paper with folded edges (c) rolled paper tubes (d) a torn flat sheet
24. 24.True or false: a battery cell is not needed for the paper bridge. (a) True (b) False
25. 25.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a ruler (d) a mirror
26. 26.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it stiffer (c) folds are magnetic (d) folds make it wet
27. 27.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
28. 28.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) a temple dome (c) an old stone bridge (d) a bridge truss
29. 29.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
30. 30.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
31. 31.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) a ruler (c) two books (d) sheets of paper
32. 32.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
33. 33.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we keep it the same (c) we measure it
34. 34.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) on a stool edge (c) low and steady (d) high and wobbly
35. 35.True or false: one flat sheet makes a strong bridge. (a) False (b) True
36. 36.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) rolled paper tubes (b) one flat sheet (c) a U-shaped channel (d) a zigzag-folded sheet
38. 38.🏗️ Where does a temple dome get its strength from? (a) tubes (b) triangles (c) arches and domes
39. 39.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) more (c) the same number of (d) fewer
40. 40.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) a balloon (d) a ruler

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