Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 927 · 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.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
2. 2.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a balloon (c) two books (d) a magnet
3. 3.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) a magnet (d) a ruler
4. 4.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
5. 5.⚖️ 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
6. 6.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
7. 7.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) True (b) False
8. 8.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it gets stronger (c) it sags and falls (d) it floats up
9. 9.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
10. 10.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
11. 11.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) two books (c) coins (d) a battery cell
12. 12.True or false: turmeric powder is not needed for the paper bridge. (a) True (b) False
13. 13.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
14. 14.True or false: a zigzag-folded sheet makes a strong bridge. (a) True (b) False
15. 15.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the shape of the paper (b) coins it holds (c) the kind of paper (d) the gap between books
16. 16.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a wet flat sheet (c) rolled paper tubes (d) paper with folded edges
17. 17.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) its curved arch shape (c) it is very hot (d) it is magnetic
18. 18.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) an eggshell (c) an old stone bridge (d) a bridge truss
19. 19.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) a bamboo pole (c) an electric tower (d) an old stone bridge
20. 20.True or false: a bamboo pole gets its strength from arches or domes. (a) True (b) False
21. 21.🔍 Which is the odd one out? (a) one flat sheet (b) a wet flat sheet (c) a torn flat sheet (d) paper with folded edges
22. 22.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
23. 23.True or false: an electric tower gets its strength from triangles. (a) False (b) True
24. 24.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) triangles (c) arches and domes
25. 25.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) an old stone bridge (c) a temple dome (d) a hollow bird bone
26. 26.🏗️ Where does an eggshell get its strength from? (a) triangles (b) arches and domes (c) tubes
27. 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) a ruler (c) coins (d) sheets of paper
28. 28.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) more (c) zero (d) the same number of
29. 29.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it stiffer (c) folds make it wet (d) folds are magnetic
30. 30.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a U-shaped channel (c) paper with folded edges (d) one flat sheet
31. 31.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
32. 32.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) wash your hands (c) skip washing (d) rub your eyes
33. 33.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
34. 34.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
35. 35.True or false: coins is not needed for the paper bridge. (a) False (b) True
36. 36.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
37. 37.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
38. 38.True or false: coins is needed for the paper bridge. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) a U-shaped channel (b) a wet flat sheet (c) one flat sheet (d) a flat tissue
40. 40.True or false: paper with folded edges makes a weak bridge. (a) False (b) True

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