Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 401 · 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 roof frame gets its strength from arches or domes. (a) True (b) False
2. 2.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
3. 3.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
4. 4.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) a zigzag-folded sheet (c) a U-shaped channel (d) rolled paper tubes
5. 5.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) triangles (c) tubes
6. 6.🔍 Which is the odd one out? (a) a torn flat sheet (b) a flat tissue (c) one flat sheet (d) rolled paper tubes
7. 7.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) wash your hands (d) lick your fingers
8. 8.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we measure it (c) we keep it the same
9. 9.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a bamboo pole (c) an electric tower (d) a temple dome
10. 10.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) high and wobbly (d) low and steady
11. 11.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) the kind of paper (c) coins it holds (d) the gap between books
12. 12.True or false: a mirror is needed for the paper bridge. (a) True (b) False
13. 13.🔺 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
14. 14.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
15. 15.🧺 Which of these is not needed for the paper bridge? (a) a battery cell (b) sheets of paper (c) a ruler (d) coins
16. 16.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a U-shaped channel (c) rolled paper tubes (d) a flat tissue
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) True (b) False
18. 18.⚖️ 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 gap between books
19. 19.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
20. 20.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) upward (c) more (d) less
21. 21.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) yeast (c) a magnet (d) sheets of paper
22. 22.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) more (c) zero (d) the same number of
23. 23.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a balloon (c) sheets of paper (d) two books
24. 24.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds are magnetic (c) folds add glue (d) folds make it wet
25. 25.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
26. 26.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) a U-shaped channel (d) a torn flat sheet
27. 27.🏗️ Which of these gets its strength from triangles? (a) a roof frame (b) a round pillar (c) an eggshell (d) a hollow bird bone
28. 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) a ruler (c) two books (d) sheets of paper
29. 29.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
30. 30.⚖️ 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
31. 31.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) sheets of paper (d) a battery cell
32. 32.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) True (b) False
33. 33.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
35. 35.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
36. 36.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a flat tissue (c) a torn flat sheet (d) paper with folded edges
37. 37.True or false: coins is not needed for the paper bridge. (a) False (b) True
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a mirror (c) coins (d) two books
39. 39.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we change it (c) we keep it the same
40. 40.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we change it (c) we keep it the same

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