Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 774 · 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.🔍 Which is the odd one out? (a) a U-shaped channel (b) a torn flat sheet (c) rolled paper tubes (d) paper with folded edges
2. 2.⚖️ 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
3. 3.🌉 Does a torn flat sheet 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) sheets of paper (b) a magnet (c) two books (d) a ruler
5. 5.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) an old stone bridge (c) a roof frame (d) a hollow bird bone
6. 6.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) lick your fingers (c) wash your hands (d) rub your eyes
7. 7.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a wet flat sheet (c) paper with folded edges (d) a torn flat sheet
8. 8.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) a zigzag-folded sheet (d) a wet flat sheet
9. 9.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
10. 10.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) a zigzag-folded sheet (c) a U-shaped channel (d) paper with folded edges
11. 11.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) triangles (c) arches and domes
12. 12.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) two books (c) a balloon (d) yeast
13. 13.🧺 Which of these is needed for the paper bridge? (a) coins (b) a battery cell (c) turmeric powder (d) a magnet
14. 14.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
15. 15.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) one flat sheet (c) a wet flat sheet (d) a U-shaped channel
16. 16.True or false: an eggshell gets its strength from arches or domes. (a) True (b) False
17. 17.🥚 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
18. 18.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
19. 19.⚖️ 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
20. 20.True or false: a hollow bird bone gets its strength from triangles. (a) True (b) False
21. 21.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) zero (d) the same number of
22. 22.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
23. 23.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) a bamboo pole (c) an electric tower (d) an eggshell
24. 24.⚖️ 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
25. 25.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we keep it the same (c) we measure it
26. 26.True or false: a magnet is needed for the paper bridge. (a) True (b) False
27. 27.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) the shape of the paper (c) coins it holds (d) the kind of paper
28. 28.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) one flat sheet (c) a U-shaped channel (d) rolled paper tubes
29. 29.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) paper with folded edges (c) a U-shaped channel (d) a flat tissue
30. 30.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
31. 31.🏗️ Where does a roof frame get its strength from? (a) tubes (b) arches and domes (c) triangles
32. 32.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) the gap between books
33. 33.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) a battery cell (d) two books
35. 35.⚖️ 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 kind of coins (c) the shape of the paper (d) coins it holds
36. 36.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) high and wobbly (c) on top of a pet (d) on a stool edge
37. 37.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
38. 38.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) a temple dome (c) an eggshell (d) a bamboo pole
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) two books (c) sheets of paper (d) a ruler
40. 40.True or false: paper with folded edges makes a weak bridge. (a) True (b) False

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