Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 509 · 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: sheets of paper is needed for the paper bridge. (a) False (b) True
2. 2.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
3. 3.🌉 Does a U-shaped channel 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) two books (b) sheets of paper (c) a mirror (d) a ruler
5. 5.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is magnetic (c) it is made of steel (d) its curved arch shape
6. 6.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) a bridge truss (c) a roof frame (d) an old stone bridge
7. 7.⚖️ 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
8. 8.🌉 Which of these makes a strong bridge? (a) paper with folded edges (b) a flat tissue (c) a wet flat sheet (d) a torn flat sheet
9. 9.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
10. 10.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a balloon (c) a ruler (d) two books
11. 11.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) a battery cell (c) turmeric powder (d) a balloon
12. 12.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) lick your fingers (d) skip washing
13. 13.True or false: a bamboo pole gets its strength from arches or domes. (a) False (b) True
14. 14.⚖️ 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
15. 15.🏗️ Where does an electric tower get its strength from? (a) triangles (b) tubes (c) arches and domes
16. 16.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
17. 17.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
18. 18.True or false: a balloon is needed for the paper bridge. (a) True (b) False
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) a magnet (d) coins
20. 20.True or false: two books is not needed for the paper bridge. (a) False (b) True
21. 21.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
22. 22.🔮 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
23. 23.⚖️ 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
24. 24.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a flat tissue (c) one flat sheet (d) a zigzag-folded sheet
25. 25.True or false: two books is needed for the paper bridge. (a) True (b) False
26. 26.True or false: a flat tissue makes a strong bridge. (a) False (b) True
27. 27.🏗️ Which of these gets its strength from a tube shape? (a) a bamboo pole (b) a roof frame (c) an electric tower (d) an eggshell
28. 28.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
29. 29.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
30. 30.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) paper with folded edges (c) one flat sheet (d) rolled paper tubes
31. 31.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) more coins (c) fewer coins (d) the same coins
32. 32.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
33. 33.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the gap between books (b) the shape of the paper (c) where coins are placed (d) coins it holds
34. 34.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
35. 35.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds are magnetic (c) folds make it stiffer (d) folds make it wet
36. 36.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it sags and falls (c) it turns to card (d) it floats up
37. 37.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) paper with folded edges (c) a wet flat sheet (d) a U-shaped channel
38. 38.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a ruler (c) sheets of paper (d) yeast
39. 39.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
40. 40.🧺 Which of these is needed for the paper bridge? (a) a ruler (b) a magnet (c) turmeric powder (d) yeast

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