Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 705 · 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? True or false: the kind of coins is what we measure. (a) True (b) False
2. 2.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) two books (d) a balloon
3. 3.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it stiffer (c) folds make it wet (d) folds add glue
4. 4.🔍 Which is the odd one out? (a) a wet flat sheet (b) a U-shaped channel (c) one flat sheet (d) a torn flat sheet
5. 5.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
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.🏗️ Where does a round pillar get its strength from? (a) triangles (b) tubes (c) arches and domes
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) a battery cell (d) two books
9. 9.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) low and steady (c) high and wobbly (d) on a stool edge
10. 10.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we measure it (b) we keep it the same (c) we change it
11. 11.🔮 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
12. 12.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
13. 13.🏗️ Where does an electric tower get its strength from? (a) tubes (b) triangles (c) arches and domes
14. 14.True or false: a balloon is needed for the paper bridge. (a) False (b) True
15. 15.⚖️ 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
16. 16.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) one flat sheet (b) a wet flat sheet (c) rolled paper tubes (d) a torn flat sheet
18. 18.⚖️ 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
19. 19.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a mirror (c) sheets of paper (d) a ruler
20. 20.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
21. 21.True or false: yeast is not needed for the paper bridge. (a) False (b) True
22. 22.🥚 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) its curved arch shape (d) it is magnetic
23. 23.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) False (b) True
24. 24.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) a zigzag-folded sheet (d) a torn flat sheet
25. 25.True or false: a temple dome gets its strength from triangles. (a) True (b) False
26. 26.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
27. 27.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) an electric tower (c) an old stone bridge (d) a hollow bird bone
28. 28.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a temple dome (c) a hollow bird bone (d) a roof frame
29. 29.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) turmeric powder (c) coins (d) two books
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) turmeric powder (c) sheets of paper (d) a ruler
31. 31.True or false: yeast is needed for the paper bridge. (a) True (b) False
32. 32.True or false: paper with folded edges makes a strong bridge. (a) True (b) False
33. 33.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a balloon (c) coins (d) two books
34. 34.🌉 Which of these makes a weak bridge? (a) a torn flat sheet (b) rolled paper tubes (c) a zigzag-folded sheet (d) a U-shaped channel
35. 35.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) tubes (c) triangles
36. 36.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a balloon (c) yeast (d) a ruler
37. 37.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) an eggshell (c) a hollow bird bone (d) a roof frame
38. 38.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a wet flat sheet (c) a flat tissue (d) paper with folded edges
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a ruler (d) a magnet
40. 40.⚖️ 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 kind of coins (c) the shape of the paper (d) coins it holds

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