Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 377 · 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.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) fewer coins (c) the same coins (d) only water
2. 2.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) coins it holds (c) the kind of coins (d) the kind of paper
3. 3.True or false: an eggshell gets its strength from arches or domes. (a) False (b) True
4. 4.🧺 Which of these is not needed for the paper bridge? (a) a balloon (b) sheets of paper (c) coins (d) a ruler
5. 5.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) fewer (d) more
6. 6.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) not at all (c) more (d) less
7. 7.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we measure it (c) we keep it the same
8. 8.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
9. 9.⚖️ 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
10. 10.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
11. 11.🔍 Which is the odd one out? (a) a torn flat sheet (b) one flat sheet (c) rolled paper tubes (d) a flat tissue
12. 12.🔍 Which is the odd one out? (a) rolled paper tubes (b) paper with folded edges (c) a U-shaped channel (d) one flat sheet
13. 13.🧺 Which of these is not needed for the paper bridge? (a) two books (b) turmeric powder (c) sheets of paper (d) a ruler
14. 14.🔍 Which is the odd one out? (a) a wet flat sheet (b) rolled paper tubes (c) a U-shaped channel (d) a zigzag-folded sheet
15. 15.🛟 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
16. 16.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds add glue (c) folds make it stiffer (d) folds make it wet
17. 17.True or false: one flat sheet makes a strong bridge. (a) True (b) False
18. 18.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the kind of paper (c) the shape of the paper
19. 19.True or false: two books is not needed for the paper bridge. (a) True (b) False
20. 20.🏗️ Where does a round pillar get its strength from? (a) triangles (b) tubes (c) arches and domes
21. 21.⚖️ 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
22. 22.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) paper with folded edges (c) rolled paper tubes (d) a flat tissue
23. 23.🔍 Which is the odd one out? (a) one flat sheet (b) a flat tissue (c) a wet flat sheet (d) a U-shaped channel
24. 24.True or false: a hollow bird bone gets its strength from a tube shape. (a) False (b) True
25. 25.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a balloon (d) a ruler
26. 26.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
27. 27.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
28. 28.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) two books (c) a battery cell (d) yeast
29. 29.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a torn flat sheet (c) a wet flat sheet (d) a zigzag-folded sheet
30. 30.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) a round pillar (c) a bamboo pole (d) an old stone bridge
31. 31.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we measure it (c) we keep it the same
32. 32.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
33. 33.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a magnet (c) a ruler (d) sheets of paper
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a battery cell (d) a ruler
35. 35.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the gap between books (c) the shape of the paper
36. 36.⚖️ 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
37. 37.🏗️ Where does a roof frame get its strength from? (a) triangles (b) tubes (c) arches and domes
38. 38.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) rolled paper tubes (c) a U-shaped channel (d) a wet flat sheet
39. 39.True or false: a zigzag-folded sheet makes a strong bridge. (a) True (b) False
40. 40.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a hollow bird bone (c) a roof frame (d) an eggshell

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