Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 111 · 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: an eggshell gets its strength from a tube shape. (a) False (b) True
2. 2.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) skip washing (d) lick your fingers
3. 3.🔍 Which is the odd one out? (a) a U-shaped channel (b) a zigzag-folded sheet (c) a torn flat sheet (d) rolled paper tubes
4. 4.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) one flat sheet (c) rolled paper tubes (d) a U-shaped channel
5. 5.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a battery cell (c) a ruler (d) sheets of paper
6. 6.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
7. 7.🧺 Which of these is not needed for the paper bridge? (a) a mirror (b) two books (c) coins (d) a ruler
8. 8.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the square (c) the triangle (d) the heart shape
9. 9.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) yeast (d) coins
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) a balloon (d) sheets of paper
11. 11.True or false: a round pillar gets its strength from a tube shape. (a) False (b) True
12. 12.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the gap between books (b) coins it holds (c) the shape of the paper
13. 13.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) False (b) True
14. 14.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) a flat tissue (b) rolled paper tubes (c) paper with folded edges (d) a zigzag-folded sheet
16. 16.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
18. 18.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
19. 19.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
20. 20.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
21. 21.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
22. 22.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) paper with folded edges (c) a flat tissue (d) one flat sheet
23. 23.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) the shape of the paper (c) the gap between books (d) the kind of paper
24. 24.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we keep it the same (c) we change it
25. 25.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) an electric tower (c) a round pillar (d) an old stone bridge
26. 26.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) its curved arch shape (c) it is magnetic (d) it is made of steel
27. 27.True or false: two books is not needed for the paper bridge. (a) False (b) True
28. 28.🌉 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
29. 29.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) False (b) True
30. 30.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) tubes (c) triangles
31. 31.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) triangles (c) arches and domes
32. 32.True or false: a roof frame gets its strength from triangles. (a) False (b) True
33. 33.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) not at all (c) upward (d) less
34. 34.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a ruler (c) sheets of paper (d) a balloon
35. 35.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) rolled paper tubes (c) a torn flat sheet (d) a flat tissue
36. 36.🏗️ Where does a temple dome get its strength from? (a) arches and domes (b) triangles (c) tubes
37. 37.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) more coins (c) the same coins (d) fewer coins
38. 38.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) triangles (c) tubes
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
40. 40.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a zigzag-folded sheet (c) a wet flat sheet (d) a U-shaped channel

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