Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 429 · 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: a U-shaped channel makes a weak bridge. (a) False (b) True
2. 2.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) on top of a pet (d) low and steady
3. 3.True or false: a temple dome gets its strength from a tube shape. (a) False (b) True
4. 4.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) triangles (c) tubes
5. 5.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
6. 6.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) an electric tower (c) an old stone bridge (d) a bamboo pole
7. 7.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a roof frame (c) a bamboo pole (d) an old stone bridge
8. 8.🧺 Which of these is needed for the paper bridge? (a) coins (b) a balloon (c) a battery cell (d) yeast
9. 9.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a U-shaped channel (c) a zigzag-folded sheet (d) a flat tissue
10. 10.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) the same coins (c) more coins (d) only water
11. 11.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) False (b) True
12. 12.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) rolled paper tubes (d) one flat sheet
14. 14.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) upward (c) less (d) not at all
15. 15.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) a roof frame (c) an eggshell (d) a round pillar
16. 16.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
17. 17.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we change it (c) we measure it
18. 18.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) triangles (c) tubes
19. 19.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
20. 20.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
21. 21.🔍 Which is the odd one out? (a) a wet flat sheet (b) a flat tissue (c) rolled paper tubes (d) one flat sheet
22. 22.🔍 Which is the odd one out? (a) a wet flat sheet (b) rolled paper tubes (c) paper with folded edges (d) a zigzag-folded sheet
23. 23.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) a wet flat sheet (d) rolled paper tubes
24. 24.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) a torn flat sheet (d) a U-shaped channel
25. 25.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a balloon (c) a mirror (d) two books
26. 26.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is very hot (c) it is magnetic (d) it is made of steel
27. 27.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we change it (c) we keep it the same
28. 28.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
29. 29.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it turns to card (c) it floats up (d) it sags and falls
30. 30.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a torn flat sheet (c) paper with folded edges (d) rolled paper tubes
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.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the gap between books (b) the shape of the paper (c) coins it holds
33. 33.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
34. 34.🏗️ Where does an electric tower get its strength from? (a) tubes (b) triangles (c) arches and domes
35. 35.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
36. 36.🏗️ Which of these gets its strength from a tube shape? (a) a hollow bird bone (b) an electric tower (c) a bridge truss (d) an old stone bridge
37. 37.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) lick your fingers (d) wash your hands
38. 38.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
39. 39.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) two books (c) turmeric powder (d) coins
40. 40.🧺 Which of these is not needed for the paper bridge? (a) a balloon (b) coins (c) sheets of paper (d) two books

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