Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 684 · 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.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
2. 2.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
3. 3.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) two books (c) a ruler (d) coins
5. 5.True or false: a hollow bird bone gets its strength from triangles. (a) True (b) False
6. 6.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we measure it (c) we keep it the same
7. 7.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) the same number of (c) zero (d) more
8. 8.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) the shape of the paper (c) where coins are placed (d) coins it holds
9. 9.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
10. 10.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) the gap between books
11. 11.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it floats up (c) it turns to card (d) it sags and falls
12. 12.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
13. 13.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds are magnetic (c) folds add glue (d) folds make it wet
14. 14.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
15. 15.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) arches and domes (c) triangles
16. 16.True or false: coins is needed for the paper bridge. (a) True (b) False
17. 17.True or false: paper with folded edges makes a weak bridge. (a) True (b) False
18. 18.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a hollow bird bone (c) a bamboo pole (d) a bridge truss
19. 19.🔍 Which is the odd one out? (a) rolled paper tubes (b) a zigzag-folded sheet (c) a wet flat sheet (d) paper with folded edges
20. 20.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
21. 21.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
22. 22.⚖️ 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
23. 23.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) a flat tissue (d) paper with folded edges
24. 24.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) one flat sheet (c) a U-shaped channel (d) rolled paper tubes
25. 25.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the heart shape (c) the square (d) the triangle
26. 26.🏗️ Which of these gets its strength from arches or domes? (a) an eggshell (b) a roof frame (c) a bridge truss (d) a round pillar
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
28. 28.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
29. 29.🏗️ Where does an electric tower get its strength from? (a) triangles (b) tubes (c) arches and domes
30. 30.True or false: a temple dome gets its strength from triangles. (a) True (b) False
31. 31.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) skip washing (c) lick your fingers (d) rub your eyes
32. 32.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a flat tissue (c) paper with folded edges (d) one flat sheet
33. 33.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on a stool edge (c) high and wobbly (d) on top of a pet
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) paper with folded edges (b) one flat sheet (c) a torn flat sheet (d) a wet flat sheet
36. 36.🧺 Which of these is not needed for the paper bridge? (a) coins (b) yeast (c) two books (d) sheets of paper
37. 37.⚖️ 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
38. 38.True or false: one flat sheet makes a strong bridge. (a) True (b) False
39. 39.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
40. 40.⚖️ 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

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