Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 448 · 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.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) the gap between books (c) the shape of the paper (d) the kind of coins
2. 2.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
3. 3.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
4. 4.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) where coins are placed (c) the kind of paper (d) coins it holds
5. 5.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) paper with folded edges (d) one flat sheet
6. 6.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) zero (d) the same number of
7. 7.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
8. 8.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a torn flat sheet (c) a U-shaped channel (d) rolled paper tubes
9. 9.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a flat tissue (c) a wet flat sheet (d) one flat sheet
10. 10.🏗️ Where does an eggshell get its strength from? (a) tubes (b) triangles (c) arches and domes
11. 11.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
12. 12.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) a bridge truss (c) a temple dome (d) a bamboo pole
13. 13.True or false: an electric tower gets its strength from arches or domes. (a) False (b) True
14. 14.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a U-shaped channel (c) a torn flat sheet (d) one flat sheet
15. 15.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
16. 16.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) skip washing (d) wash your hands
17. 17.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) a U-shaped channel (c) rolled paper tubes (d) a zigzag-folded sheet
18. 18.⚖️ 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
19. 19.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
20. 20.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) fewer coins (c) the same coins (d) more coins
21. 21.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) True (b) False
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a ruler (d) a magnet
23. 23.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
24. 24.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) True (b) False
25. 25.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) tubes (c) arches and domes
26. 26.True or false: an electric tower gets its strength from a tube shape. (a) True (b) False
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
28. 28.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the triangle (c) the square (d) the star
29. 29.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it sags and falls (c) it floats up (d) it gets stronger
30. 30.True or false: a magnet is needed for the paper bridge. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) rolled paper tubes (d) a torn flat sheet
32. 32.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we measure it (c) we keep it the same
33. 33.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) False (b) True
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) sheets of paper (d) a balloon
35. 35.⚖️ 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
36. 36.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a roof frame (c) a bamboo pole (d) an electric tower
37. 37.True or false: a flat tissue makes a strong bridge. (a) False (b) True
38. 38.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a bridge truss (c) an old stone bridge (d) a bamboo pole
39. 39.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds make it wet (c) folds add glue (d) folds are magnetic
40. 40.True or false: a balloon is needed for the paper bridge. (a) False (b) True

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