Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 651 · 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.🧺 Which of these is not needed for the paper bridge? (a) a battery cell (b) sheets of paper (c) two books (d) coins
2. 2.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) a magnet (d) coins
3. 3.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) True (b) False
4. 4.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) a ruler (d) yeast
5. 5.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it floats up (c) it turns to card (d) it sags and falls
6. 6.🔍 Which is the odd one out? (a) a torn flat sheet (b) a zigzag-folded sheet (c) rolled paper tubes (d) paper with folded edges
7. 7.True or false: yeast is needed for the paper bridge. (a) True (b) False
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a mirror (d) coins
9. 9.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) tubes (c) triangles
10. 10.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) more (c) the same number of (d) fewer
11. 11.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) skip washing (c) rub your eyes (d) wash your hands
12. 12.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
13. 13.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) coins (c) yeast (d) a balloon
14. 14.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
15. 15.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
16. 16.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
17. 17.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) an eggshell (c) a bamboo pole (d) a bridge truss
18. 18.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we change it (c) we keep it the same
19. 19.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we keep it the same (b) we change it (c) we measure it
20. 20.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it wet (c) folds are magnetic (d) folds make it stiffer
21. 21.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) coins (d) a magnet
22. 22.True or false: an old stone bridge gets its strength from arches or domes. (a) False (b) True
23. 23.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we change it (c) we keep it the same
24. 24.True or false: a ruler is not needed for the paper bridge. (a) True (b) False
25. 25.🔺 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 heart shape (d) the square
26. 26.True or false: a battery cell is not needed for the paper bridge. (a) True (b) False
27. 27.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) a torn flat sheet (d) rolled paper tubes
28. 28.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of paper (b) the shape of the paper (c) coins it holds
29. 29.⚖️ 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 measure it (c) we change it
30. 30.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we change it (c) we measure it
31. 31.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we keep it the same (c) we change it
32. 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) sheets of paper (d) a balloon
33. 33.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
34. 34.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
35. 35.⚖️ 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
36. 36.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) the gap between books (c) the kind of paper (d) coins it holds
37. 37.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) True (b) False
38. 38.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) True (b) False
39. 39.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a ruler (d) turmeric powder

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