Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 345 · 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.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) wash your hands (c) skip washing (d) rub your eyes
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.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) two books (c) a ruler (d) coins
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) sheets of paper (d) turmeric powder
5. 5.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) one flat sheet (d) a U-shaped channel
6. 6.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) triangles (c) tubes
7. 7.⚖️ 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) where coins are placed
8. 8.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is magnetic (c) its curved arch shape (d) it is made of steel
9. 9.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
10. 10.True or false: a temple dome gets its strength from arches or domes. (a) False (b) True
11. 11.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) arches and domes (c) triangles
12. 12.True or false: a bamboo pole gets its strength from triangles. (a) False (b) True
13. 13.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we measure it (c) we keep it the same
14. 14.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) coins (d) a magnet
15. 15.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
16. 16.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) False (b) True
17. 17.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a ruler (c) a magnet (d) turmeric powder
18. 18.True or false: a round pillar gets its strength from arches or domes. (a) False (b) True
19. 19.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a zigzag-folded sheet (c) a torn flat sheet (d) one flat sheet
20. 20.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
21. 21.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
22. 22.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a battery cell (c) a balloon (d) sheets of paper
23. 23.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) a torn flat sheet (d) paper with folded edges
24. 24.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) coins it holds (c) where coins are placed (d) the kind of paper
25. 25.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is the one thing we change. (a) False (b) True
26. 26.True or false: a magnet is not needed for the paper bridge. (a) True (b) False
27. 27.True or false: a battery cell is needed for the paper bridge. (a) True (b) False
28. 28.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a bamboo pole (c) a bridge truss (d) an eggshell
29. 29.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we measure it (c) we keep it the same
30. 30.🔍 Which is the odd one out? (a) a U-shaped channel (b) rolled paper tubes (c) a torn flat sheet (d) a zigzag-folded sheet
31. 31.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the gap between books (c) coins it holds
32. 32.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) zero (c) fewer (d) the same number of
33. 33.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a bamboo pole (c) a hollow bird bone (d) a roof frame
34. 34.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
35. 35.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) not at all (c) more (d) less
36. 36.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (a) False (b) True
37. 37.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it turns to card (c) it sags and falls (d) it gets stronger
38. 38.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
39. 39.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) an eggshell (c) a bamboo pole (d) a bridge truss
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) two books (d) a battery cell

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