Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 274 · 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 U-shaped channel makes a strong bridge. (a) False (b) True
2. 2.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
3. 3.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) yeast (d) a ruler
4. 4.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) a U-shaped channel (b) a flat tissue (c) paper with folded edges (d) rolled paper tubes
6. 6.True or false: one flat sheet makes a weak bridge. (a) False (b) True
7. 7.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) triangles (c) tubes
8. 8.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) tubes (c) arches and domes
9. 9.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) two books (c) sheets of paper (d) a ruler
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) a mirror (d) a ruler
11. 11.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we change it (c) we keep it the same
12. 12.⚖️ 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
13. 13.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) False (b) True
14. 14.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) coins it holds (c) the shape of the paper (d) the kind of paper
15. 15.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
16. 16.⚖️ 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
17. 17.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) one flat sheet (d) paper with folded edges
18. 18.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
19. 19.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
20. 20.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) tubes (c) triangles
21. 21.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is the one thing we change. (a) True (b) False
22. 22.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
23. 23.🌉 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
24. 24.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
25. 25.🧺 Which of these is not needed for the paper bridge? (a) a mirror (b) coins (c) sheets of paper (d) a ruler
26. 26.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) zero (c) the same number of (d) fewer
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) False (b) True
28. 28.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
29. 29.🧺 Which of these is needed for the paper bridge? (a) yeast (b) turmeric powder (c) sheets of paper (d) a balloon
30. 30.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) its curved arch shape (c) it is very hot (d) it is made of steel
31. 31.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) triangles (c) tubes
32. 32.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) a ruler (d) a magnet
33. 33.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it turns to card (c) it floats up (d) it gets stronger
34. 34.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
35. 35.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds make it stiffer (c) folds add glue (d) folds are magnetic
36. 36.True or false: a bridge truss gets its strength from arches or domes. (a) True (b) False
37. 37.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) coins (c) a balloon (d) a battery cell
38. 38.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) an electric tower (c) a temple dome (d) a hollow bird bone
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
40. 40.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge

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