Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 813 · 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.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) low and steady (d) on a stool edge
2. 2.⚖️ 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
3. 3.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is very hot (c) its curved arch shape (d) it is magnetic
4. 4.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) more coins (c) only water (d) the same coins
5. 5.🔍 Which is the odd one out? (a) a wet flat sheet (b) a zigzag-folded sheet (c) a torn flat sheet (d) a flat tissue
6. 6.🔍 Which is the odd one out? (a) a wet flat sheet (b) paper with folded edges (c) a torn flat sheet (d) a flat tissue
7. 7.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
8. 8.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) yeast (c) a battery cell (d) coins
9. 9.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a balloon (c) two books (d) coins
11. 11.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) True (b) False
12. 12.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) a bamboo pole (c) a bridge truss (d) a roof frame
13. 13.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we change it (c) we measure it
14. 14.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) two books (d) turmeric powder
15. 15.🔍 Which is the odd one out? (a) paper with folded edges (b) a zigzag-folded sheet (c) rolled paper tubes (d) one flat sheet
16. 16.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) True (b) False
17. 17.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a balloon (c) a magnet (d) sheets of paper
18. 18.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
19. 19.⚖️ 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
20. 20.True or false: an old stone bridge gets its strength from a tube shape. (a) False (b) True
21. 21.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds make it stiffer (c) folds add glue (d) folds are magnetic
22. 22.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
23. 23.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) skip washing (d) wash your hands
24. 24.True or false: a battery cell is needed for the paper bridge. (a) True (b) False
25. 25.True or false: an eggshell gets its strength from arches or domes. (a) True (b) False
26. 26.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the gap between books (c) the shape of the paper
27. 27.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a balloon (c) sheets of paper (d) two books
28. 28.True or false: a bamboo pole gets its strength from a tube shape. (a) True (b) False
29. 29.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) a battery cell (d) sheets of paper
30. 30.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) a flat tissue (d) rolled paper tubes
31. 31.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
32. 32.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) tubes (c) triangles
33. 33.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) one flat sheet (c) a zigzag-folded sheet (d) paper with folded edges
34. 34.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
35. 35.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
36. 36.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) turmeric powder (c) a ruler (d) a magnet
37. 37.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
38. 38.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) two books (c) a battery cell (d) sheets of paper
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) sheets of paper (d) a mirror
40. 40.🏗️ Where does a round pillar get its strength from? (a) triangles (b) arches and domes (c) tubes

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