Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 108 · 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: one flat sheet makes a strong bridge. (a) True (b) False
2. 2.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
3. 3.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) yeast (d) coins
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) sheets of paper (d) turmeric powder
5. 5.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a magnet (c) turmeric powder (d) two books
6. 6.🏗️ Where does a temple dome get its strength from? (a) tubes (b) triangles (c) arches and domes
7. 7.True or false: yeast is not needed for the paper bridge. (a) False (b) True
8. 8.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds are magnetic (c) folds make it stiffer (d) folds add glue
9. 9.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) the same number of (d) zero
10. 10.🔍 Which is the odd one out? (a) a U-shaped channel (b) paper with folded edges (c) a flat tissue (d) a zigzag-folded sheet
11. 11.True or false: a battery cell is not needed for the paper bridge. (a) True (b) False
12. 12.🔍 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 gets stronger (d) it sags and falls
13. 13.True or false: a balloon is needed for the paper bridge. (a) False (b) True
14. 14.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
15. 15.True or false: rolled paper tubes makes a strong bridge. (a) True (b) False
16. 16.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) less (c) upward (d) more
17. 17.🧺 Which of these is not needed for the paper bridge? (a) yeast (b) a ruler (c) two books (d) coins
18. 18.⚖️ 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 kind of coins
19. 19.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) an eggshell (c) a bamboo pole (d) a bridge truss
20. 20.True or false: a temple dome gets its strength from a tube shape. (a) False (b) True
21. 21.True or false: two books is needed for the paper bridge. (a) True (b) False
22. 22.🛟 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
23. 23.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
24. 24.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
25. 25.⚖️ 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 measure it (c) we change it
26. 26.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) triangles (c) tubes
27. 27.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) coins (c) sheets of paper (d) a magnet
28. 28.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) its curved arch shape (c) it is very hot (d) it is magnetic
29. 29.True or false: a ruler is needed for the paper bridge. (a) False (b) True
30. 30.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) an eggshell (c) an old stone bridge (d) a round pillar
31. 31.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
32. 32.⚖️ 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
33. 33.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) high and wobbly (d) low and steady
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a wet flat sheet (c) one flat sheet (d) a flat tissue
36. 36.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) sheets of paper (c) a ruler (d) two books
37. 37.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
38. 38.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the triangle (c) the square (d) the heart shape
39. 39.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
40. 40.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) a ruler (d) a battery cell

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