Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 317 · 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 triangles. (a) True (b) False
2. 2.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
3. 3.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it wet (c) folds add glue (d) folds make it stiffer
4. 4.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) paper with folded edges (c) a wet flat sheet (d) a U-shaped channel
5. 5.True or false: a magnet is needed for the paper bridge. (a) False (b) True
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a battery cell (d) sheets of paper
7. 7.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) triangles (c) tubes
8. 8.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) a torn flat sheet (d) paper with folded edges
9. 9.⚖️ 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
10. 10.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) a mirror (d) coins
11. 11.True or false: one flat sheet makes a strong bridge. (a) False (b) True
12. 12.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
13. 13.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a mirror (c) a battery cell (d) a ruler
14. 14.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
15. 15.🏗️ Where does a round pillar get its strength from? (a) triangles (b) tubes (c) arches and domes
16. 16.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
17. 17.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) sheets of paper (c) a battery cell (d) a balloon
18. 18.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) an old stone bridge (c) a bamboo pole (d) a round pillar
19. 19.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the gap between books (b) coins it holds (c) the shape of the paper
20. 20.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) zero (c) fewer (d) the same number of
21. 21.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is made of steel (c) it is magnetic (d) its curved arch shape
22. 22.True or false: an eggshell gets its strength from a tube shape. (a) False (b) True
23. 23.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a temple dome (c) an electric tower (d) a bamboo pole
24. 24.🌉 Which of these makes a strong bridge? (a) paper with folded edges (b) a wet flat sheet (c) one flat sheet (d) a torn flat sheet
25. 25.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
26. 26.⚖️ 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 measure it (c) we change it
27. 27.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
28. 28.🔍 Which is the odd one out? (a) one flat sheet (b) a wet flat sheet (c) paper with folded edges (d) a torn flat sheet
29. 29.True or false: two books is not needed for the paper bridge. (a) False (b) True
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) a magnet (d) sheets of paper
31. 31.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of coins (b) the shape of the paper (c) coins it holds
32. 32.⚖️ 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
33. 33.True or false: coins is needed for the paper bridge. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) rolled paper tubes (b) a wet flat sheet (c) one flat sheet (d) a flat tissue
35. 35.🔍 Which is the odd one out? (a) paper with folded edges (b) one flat sheet (c) a U-shaped channel (d) a zigzag-folded sheet
36. 36.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a torn flat sheet (c) a U-shaped channel (d) paper with folded edges
37. 37.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it turns to card (c) it sags and falls (d) it floats up
38. 38.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
39. 39.⚖️ 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
40. 40.True or false: a magnet is not needed for the paper bridge. (a) True (b) False

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