Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 645 · 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 roof frame gets its strength from a tube shape. (a) True (b) False
2. 2.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) an eggshell (c) a bamboo pole (d) a roof frame
3. 3.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds add glue (c) folds are magnetic (d) folds make it stiffer
4. 4.True or false: one flat sheet makes a strong bridge. (a) True (b) False
5. 5.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) False (b) True
6. 6.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
7. 7.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) two books (c) a ruler (d) coins
8. 8.True or false: a battery cell is not needed for the paper bridge. (a) True (b) False
9. 9.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a battery cell (c) sheets of paper (d) yeast
10. 10.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of paper (b) coins it holds (c) the shape of the paper
11. 11.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
12. 12.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) more (d) the same number of
13. 13.🔍 Which is the odd one out? (a) one flat sheet (b) a zigzag-folded sheet (c) a U-shaped channel (d) rolled paper tubes
14. 14.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
15. 15.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
16. 16.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
17. 17.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) arches and domes (c) tubes
18. 18.🔍 Which is the odd one out? (a) a U-shaped channel (b) a flat tissue (c) one flat sheet (d) a torn flat sheet
19. 19.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) an old stone bridge (c) a bridge truss (d) a temple dome
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) coins (c) sheets of paper (d) a ruler
21. 21.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) not at all (c) upward (d) more
22. 22.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a U-shaped channel (c) a flat tissue (d) a zigzag-folded sheet
23. 23.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a bamboo pole (c) a roof frame (d) an old stone bridge
24. 24.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it turns to card (c) it gets stronger (d) it floats up
25. 25.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) the kind of coins (c) coins it holds (d) where coins are placed
26. 26.🧺 Which of these is not needed for the paper bridge? (a) a magnet (b) a ruler (c) two books (d) sheets of paper
27. 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a balloon (c) two books (d) sheets of paper
28. 28.True or false: a balloon is needed for the paper bridge. (a) False (b) True
29. 29.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
30. 30.True or false: a ruler is needed for the paper bridge. (a) False (b) True
31. 31.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
32. 32.🥚 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) it is magnetic (d) its curved arch shape
33. 33.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) wash your hands (d) lick your fingers
34. 34.🏗️ Where does a temple dome get its strength from? (a) tubes (b) triangles (c) arches and domes
35. 35.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
36. 36.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we change it (c) we keep it the same
37. 37.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a magnet (c) two books (d) a ruler
39. 39.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a magnet (c) a balloon (d) coins
40. 40.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True

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