Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 214 · 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) False (b) True
2. 2.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) arches and domes (c) triangles
3. 3.True or false: one flat sheet makes a weak bridge. (a) False (b) True
4. 4.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) the same coins (c) only water (d) more coins
5. 5.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a balloon (c) turmeric powder (d) sheets of paper
6. 6.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we measure it (c) we keep it the same
7. 7.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) one flat sheet (c) a flat tissue (d) a torn flat sheet
8. 8.True or false: a flat tissue makes a weak bridge. (a) True (b) False
9. 9.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) sheets of paper (c) a ruler (d) two books
11. 11.🏗️ Which of these gets its strength from a tube shape? (a) a round pillar (b) an old stone bridge (c) a temple dome (d) a bridge truss
12. 12.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) turmeric powder (c) a mirror (d) coins
13. 13.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) more (d) the same number of
14. 14.🏗️ Which of these gets its strength from arches or domes? (a) a temple dome (b) a hollow bird bone (c) a bridge truss (d) a roof frame
15. 15.⚖️ 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 kind of paper (c) coins it holds (d) the shape of the paper
16. 16.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
17. 17.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we keep it the same (c) we change it
18. 18.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
19. 19.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a mirror (c) coins (d) two books
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a battery cell (d) a ruler
21. 21.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a bamboo pole (c) a roof frame (d) an old stone bridge
22. 22.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
23. 23.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) wash your hands (c) rub your eyes (d) skip washing
24. 24.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) not at all (c) more (d) less
25. 25.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is the one thing we change. (a) False (b) True
26. 26.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it floats up (c) it turns to card (d) it gets stronger
27. 27.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the square (c) the triangle (d) the heart shape
28. 28.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
29. 29.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we measure it (c) we keep it the same
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) a balloon (d) coins
31. 31.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
32. 32.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) triangles (c) tubes
33. 33.🔍 Which is the odd one out? (a) a torn flat sheet (b) one flat sheet (c) a U-shaped channel (d) a flat tissue
34. 34.🏗️ Where does an electric tower get its strength from? (a) tubes (b) triangles (c) arches and domes
35. 35.True or false: two books is not needed for the paper bridge. (a) True (b) False
36. 36.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
37. 37.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) two books (c) sheets of paper (d) a ruler
39. 39.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) high and wobbly (c) on top of a pet (d) on a stool edge
40. 40.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False

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