Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 71 · 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.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) more (d) fewer
2. 2.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
3. 3.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) lick your fingers (d) skip washing
4. 4.True or false: a temple dome gets its strength from triangles. (a) True (b) False
5. 5.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
6. 6.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
7. 7.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a hollow bird bone (c) an electric tower (d) a temple dome
8. 8.True or false: one flat sheet makes a strong bridge. (a) False (b) True
9. 9.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a flat tissue (c) a zigzag-folded sheet (d) rolled paper tubes
10. 10.⚖️ 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
11. 11.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a magnet (c) a balloon (d) sheets of paper
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a mirror (c) sheets of paper (d) two books
13. 13.True or false: an electric tower gets its strength from a tube shape. (a) False (b) True
14. 14.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we keep it the same (c) we measure it
15. 15.True or false: an electric tower gets its strength from arches or domes. (a) True (b) False
16. 16.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
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.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the kind of paper (c) the shape of the paper
19. 19.🌉 Which of these makes a strong bridge? (a) rolled paper tubes (b) a wet flat sheet (c) one flat sheet (d) a flat tissue
20. 20.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) less (c) more (d) upward
21. 21.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
22. 22.True or false: a ruler is needed for the paper bridge. (a) True (b) False
23. 23.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) True (b) False
24. 24.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) only water (c) fewer coins (d) more coins
25. 25.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a zigzag-folded sheet (c) a torn flat sheet (d) a wet flat sheet
26. 26.🔍 Which is the odd one out? (a) one flat sheet (b) a U-shaped channel (c) rolled paper tubes (d) paper with folded edges
27. 27.True or false: two books is needed for the paper bridge. (a) True (b) False
28. 28.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) an electric tower (c) a round pillar (d) a roof frame
29. 29.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a mirror (c) coins (d) sheets of paper
30. 30.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a ruler (c) turmeric powder (d) a balloon
31. 31.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) rolled paper tubes (c) a zigzag-folded sheet (d) a wet flat sheet
32. 32.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
33. 33.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
34. 34.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the square (c) the heart shape (d) the star
35. 35.🏗️ Where does a round pillar get its strength from? (a) triangles (b) arches and domes (c) tubes
36. 36.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
37. 37.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) the shape of the paper (c) where coins are placed (d) coins it holds
38. 38.True or false: a zigzag-folded sheet makes a strong bridge. (a) True (b) False
39. 39.True or false: a bamboo pole gets its strength from triangles. (a) True (b) False
40. 40.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) low and steady (c) on a stool edge (d) on top of a pet

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