Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 770 · 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.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) one flat sheet (c) rolled paper tubes (d) a zigzag-folded sheet
2. 2.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
3. 3.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
4. 4.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) low and steady (c) on top of a pet (d) on a stool edge
5. 5.🔍 Which is the odd one out? (a) one flat sheet (b) rolled paper tubes (c) a U-shaped channel (d) a zigzag-folded sheet
6. 6.🔍 Which is the odd one out? (a) a flat tissue (b) paper with folded edges (c) one flat sheet (d) a wet flat sheet
7. 7.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) rolled paper tubes (c) one flat sheet (d) a flat tissue
8. 8.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
9. 9.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (a) True (b) False
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a ruler (d) turmeric powder
11. 11.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a bridge truss (c) a hollow bird bone (d) a bamboo pole
12. 12.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) a battery cell (d) two books
13. 13.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds add glue (c) folds make it stiffer (d) folds make it wet
14. 14.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a zigzag-folded sheet (c) a wet flat sheet (d) one flat sheet
15. 15.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a U-shaped channel (c) one flat sheet (d) a torn flat sheet
16. 16.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) lick your fingers (d) wash your hands
17. 17.True or false: a hollow bird bone gets its strength from triangles. (a) True (b) False
18. 18.🏗️ Where does a temple dome get its strength from? (a) tubes (b) triangles (c) arches and domes
19. 19.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
20. 20.🏗️ Where does an electric tower get its strength from? (a) triangles (b) arches and domes (c) tubes
21. 21.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) coins (c) a balloon (d) yeast
22. 22.True or false: a mirror is needed for the paper bridge. (a) False (b) True
23. 23.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it floats up (c) it sags and falls (d) it gets stronger
24. 24.🔍 Which is the odd one out? (a) rolled paper tubes (b) a zigzag-folded sheet (c) paper with folded edges (d) a torn flat sheet
25. 25.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
26. 26.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) True (b) False
27. 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) coins (d) a mirror
28. 28.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) more (d) the same number of
29. 29.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we keep it the same (b) we change it (c) we measure it
30. 30.True or false: one flat sheet makes a weak bridge. (a) True (b) False
31. 31.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we change it (c) we keep it the same
32. 32.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
33. 33.True or false: yeast is needed for the paper bridge. (a) False (b) True
34. 34.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) sheets of paper (d) a mirror
35. 35.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) False (b) True
36. 36.True or false: an electric tower gets its strength from a tube shape. (a) False (b) True
37. 37.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) turmeric powder (c) a ruler (d) yeast
38. 38.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) the kind of coins (c) coins it holds (d) the kind of paper
39. 39.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
40. 40.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed

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