Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 786 · 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 zigzag-folded sheet makes a weak bridge. (a) True (b) False
2. 2.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a torn flat sheet (c) a U-shaped channel (d) paper with folded edges
3. 3.True or false: a wet flat sheet makes a weak bridge. (a) True (b) False
4. 4.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
5. 5.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) False (b) True
6. 6.⚖️ 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
7. 7.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it sags and falls (c) it gets stronger (d) it floats up
8. 8.True or false: an eggshell gets its strength from triangles. (a) True (b) False
9. 9.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) sheets of paper (d) a magnet
10. 10.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) low and steady (c) high and wobbly (d) on a stool edge
11. 11.🏗️ Where does a roof frame get its strength from? (a) tubes (b) arches and domes (c) triangles
12. 12.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
13. 13.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) two books (d) a mirror
14. 14.⚖️ 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) the kind of coins (d) coins it holds
15. 15.🔍 Which is the odd one out? (a) paper with folded edges (b) a torn flat sheet (c) rolled paper tubes (d) a U-shaped channel
16. 16.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
17. 17.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) turmeric powder (c) two books (d) a ruler
18. 18.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) two books (c) sheets of paper (d) a magnet
19. 19.⚖️ 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 keep it the same (c) we change it
20. 20.🔍 Which is the odd one out? (a) a wet flat sheet (b) a torn flat sheet (c) a U-shaped channel (d) a flat tissue
21. 21.⚖️ 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
22. 22.🧺 Which of these is not needed for the paper bridge? (a) a battery cell (b) sheets of paper (c) two books (d) coins
23. 23.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) a bamboo pole (c) an eggshell (d) an old stone bridge
24. 24.True or false: a balloon is needed for the paper bridge. (a) False (b) True
25. 25.True or false: a battery cell is needed for the paper bridge. (a) False (b) True
26. 26.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
27. 27.🛟 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
28. 28.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the heart shape (c) the star (d) the triangle
29. 29.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) yeast (d) a ruler
31. 31.True or false: a bridge truss gets its strength from arches or domes. (a) True (b) False
32. 32.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we measure it (c) we keep it the same
33. 33.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) the same number of (d) more
34. 34.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) triangles (c) tubes
35. 35.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a mirror (c) coins (d) a balloon
36. 36.🔍 Which is the odd one out? (a) one flat sheet (b) paper with folded edges (c) a zigzag-folded sheet (d) a U-shaped channel
37. 37.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) not at all (c) less (d) upward
38. 38.True or false: a mirror is needed for the paper bridge. (a) True (b) False
39. 39.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a U-shaped channel (c) rolled paper tubes (d) a wet flat sheet
40. 40.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge

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