Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 201 · 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) yeast (b) sheets of paper (c) two books (d) coins
2. 2.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) paper with folded edges (c) rolled paper tubes (d) a flat tissue
3. 3.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we keep it the same (c) we change it
4. 4.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we keep it the same (c) we measure it
5. 5.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a battery cell (c) sheets of paper (d) two books
6. 6.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
7. 7.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a ruler (d) turmeric powder
8. 8.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) the same number of (d) more
9. 9.🔍 Which is the odd one out? (a) a wet flat sheet (b) a torn flat sheet (c) one flat sheet (d) paper with folded edges
10. 10.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
11. 11.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) sheets of paper (d) a mirror
12. 12.🔮 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
13. 13.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a torn flat sheet (c) a U-shaped channel (d) a zigzag-folded sheet
14. 14.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
15. 15.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
16. 16.🔍 Which is the odd one out? (a) a U-shaped channel (b) one flat sheet (c) a flat tissue (d) a wet flat sheet
17. 17.🔺 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
18. 18.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) high and wobbly (c) on a stool edge (d) low and steady
19. 19.⚖️ 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
20. 20.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we keep it the same (c) we change it
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a magnet (d) a ruler
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) a balloon (d) two books
23. 23.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
24. 24.🏗️ Where does an eggshell get its strength from? (a) tubes (b) arches and domes (c) triangles
25. 25.🏗️ Which of these gets its strength from a tube shape? (a) a bamboo pole (b) an old stone bridge (c) a temple dome (d) an eggshell
26. 26.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) yeast (d) two books
27. 27.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) sheets of paper (c) yeast (d) a balloon
28. 28.🔍 Which is the odd one out? (a) a flat tissue (b) a torn flat sheet (c) one flat sheet (d) a zigzag-folded sheet
29. 29.🔍 Which is the odd one out? (a) a U-shaped channel (b) a zigzag-folded sheet (c) a flat tissue (d) rolled paper tubes
30. 30.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
31. 31.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a mirror (c) turmeric powder (d) two books
32. 32.True or false: yeast is not needed for the paper bridge. (a) False (b) True
33. 33.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
34. 34.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
35. 35.🛟 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
36. 36.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) tubes (c) arches and domes
37. 37.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) True (b) False
38. 38.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of paper (b) the shape of the paper (c) coins it holds
39. 39.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
40. 40.True or false: an electric tower gets its strength from arches or domes. (a) True (b) False

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