Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 527 · 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.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it floats up (c) it gets stronger (d) it sags and falls
2. 2.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
3. 3.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a battery cell (c) a balloon (d) coins
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) a battery cell (d) coins
5. 5.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
6. 6.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) a bamboo pole (c) an eggshell (d) an electric tower
7. 7.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) not at all (c) more (d) upward
8. 8.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
9. 9.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) one flat sheet (c) rolled paper tubes (d) a U-shaped channel
10. 10.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
11. 11.🏗️ Where does a temple dome get its strength from? (a) triangles (b) tubes (c) arches and domes
12. 12.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we measure it (c) we keep it the same
13. 13.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
14. 14.⚖️ 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
15. 15.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) more (c) zero (d) the same number of
16. 16.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) wash your hands (c) lick your fingers (d) skip washing
17. 17.🏗️ Where does an eggshell get its strength from? (a) tubes (b) triangles (c) arches and domes
18. 18.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) low and steady (c) on a stool edge (d) on top of a pet
19. 19.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the shape of the paper (b) where coins are placed (c) the kind of paper (d) the kind of coins
20. 20.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
21. 21.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) arches and domes (c) triangles
22. 22.🔍 Which is the odd one out? (a) a U-shaped channel (b) rolled paper tubes (c) paper with folded edges (d) a wet flat sheet
23. 23.True or false: a U-shaped channel makes a strong bridge. (a) True (b) False
24. 24.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
25. 25.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a roof frame (c) a round pillar (d) an electric tower
26. 26.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a wet flat sheet (c) a flat tissue (d) a zigzag-folded sheet
27. 27.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
28. 28.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a torn flat sheet (c) a flat tissue (d) a wet flat sheet
29. 29.True or false: coins is needed for the paper bridge. (a) False (b) True
30. 30.True or false: a balloon is needed for the paper bridge. (a) True (b) False
31. 31.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) sheets of paper (d) yeast
32. 32.🏗️ Where does an electric tower get its strength from? (a) triangles (b) tubes (c) arches and domes
33. 33.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is very hot (c) its curved arch shape (d) it is made of steel
34. 34.True or false: a mirror is needed for the paper bridge. (a) True (b) False
35. 35.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a wet flat sheet (c) a U-shaped channel (d) one flat sheet
36. 36.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
37. 37.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) triangles (c) arches and domes
38. 38.True or false: a battery cell is needed for the paper bridge. (a) True (b) False
39. 39.True or false: a bridge truss gets its strength from arches or domes. (a) True (b) False
40. 40.🌉 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

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