Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 270 · 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: one flat sheet makes a weak bridge. (a) True (b) False
2. 2.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) a zigzag-folded sheet (d) a torn flat sheet
3. 3.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) arches and domes (c) tubes
4. 4.True or false: a bridge truss gets its strength from arches or domes. (a) True (b) False
5. 5.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
6. 6.True or false: a battery cell is needed for the paper bridge. (a) True (b) False
7. 7.🌉 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
8. 8.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of coins (b) the shape of the paper (c) coins it holds
9. 9.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a mirror (c) turmeric powder (d) coins
10. 10.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
11. 11.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) tubes (c) triangles
12. 12.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) a mirror (d) coins
13. 13.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
14. 14.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
15. 15.🌉 Which of these makes a strong bridge? (a) paper with folded edges (b) one flat sheet (c) a torn flat sheet (d) a wet flat sheet
16. 16.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) wash your hands (c) skip washing (d) lick your fingers
17. 17.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a mirror (c) a ruler (d) two books
19. 19.True or false: yeast is needed for the paper bridge. (a) False (b) True
20. 20.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we measure it (b) we change it (c) we keep it the same
21. 21.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) the gap between books (c) coins it holds (d) the shape of the paper
22. 22.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) on a stool edge (c) high and wobbly (d) low and steady
23. 23.True or false: an electric tower gets its strength from triangles. (a) False (b) True
24. 24.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is very hot (c) its curved arch shape (d) it is made of steel
25. 25.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) a roof frame (c) a temple dome (d) a round pillar
26. 26.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a U-shaped channel (c) a wet flat sheet (d) one flat sheet
27. 27.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) a roof frame (c) a round pillar (d) a bridge truss
28. 28.⚖️ 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
29. 29.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we keep it the same (b) we change it (c) we measure it
30. 30.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) a round pillar (c) a temple dome (d) an eggshell
31. 31.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) the gap between books (c) the kind of paper (d) the shape of the paper
32. 32.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) rolled paper tubes (c) a U-shaped channel (d) paper with folded edges
33. 33.🔍 Which is the odd one out? (a) one flat sheet (b) a U-shaped channel (c) paper with folded edges (d) rolled paper tubes
34. 34.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) a torn flat sheet (d) a U-shaped channel
35. 35.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) sheets of paper (d) yeast
36. 36.True or false: one flat sheet makes a strong bridge. (a) True (b) False
37. 37.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a magnet (c) two books (d) a ruler
38. 38.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
39. 39.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
40. 40.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it gets stronger (c) it sags and falls (d) it turns to card

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