Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 231 · 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.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) on top of a pet (d) low and steady
2. 2.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
3. 3.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) the kind of paper (c) the shape of the paper (d) coins it holds
4. 4.True or false: a balloon is needed for the paper bridge. (a) False (b) True
5. 5.True or false: a flat tissue makes a weak bridge. (a) False (b) True
6. 6.True or false: an electric tower gets its strength from triangles. (a) True (b) False
7. 7.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) triangles (c) tubes
8. 8.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a ruler (c) a mirror (d) turmeric powder
9. 9.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a battery cell (c) two books (d) sheets of paper
10. 10.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a bamboo pole (c) a bridge truss (d) a temple dome
11. 11.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
12. 12.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
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.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a flat tissue (d) a zigzag-folded sheet
15. 15.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) the shape of the paper (c) the gap between books (d) the kind of paper
16. 16.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) less (c) more (d) not at all
17. 17.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
18. 18.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) triangles (c) arches and domes
19. 19.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a round pillar (c) an eggshell (d) a roof frame
20. 20.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
21. 21.True or false: an eggshell gets its strength from triangles. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) a torn flat sheet (b) a flat tissue (c) one flat sheet (d) a U-shaped channel
23. 23.🏗️ Which of these gets its strength from a tube shape? (a) a hollow bird bone (b) a roof frame (c) a temple dome (d) a bridge truss
24. 24.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) a temple dome (c) a bridge truss (d) a bamboo pole
25. 25.True or false: coins is not needed for the paper bridge. (a) True (b) False
26. 26.🧺 Which of these is needed for the paper bridge? (a) two books (b) a balloon (c) a magnet (d) a mirror
27. 27.🔺 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
28. 28.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
29. 29.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we keep it the same (c) we change it
30. 30.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) turmeric powder (c) a magnet (d) a mirror
31. 31.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) True (b) False
32. 32.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) yeast (d) two books
33. 33.⚖️ 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
34. 34.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it turns to card (c) it gets stronger (d) it sags and falls
35. 35.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
36. 36.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) lick your fingers (c) skip washing (d) wash your hands
37. 37.True or false: a battery cell is needed for the paper bridge. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) rolled paper tubes (b) paper with folded edges (c) a zigzag-folded sheet (d) a wet flat sheet
39. 39.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
40. 40.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) True (b) False

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