Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 792 · 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.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) a ruler (c) sheets of paper (d) two books
2. 2.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is very hot (c) its curved arch shape (d) it is magnetic
3. 3.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) only water (d) fewer coins
4. 4.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a mirror (c) a ruler (d) two books
5. 5.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a torn flat sheet (c) a U-shaped channel (d) a flat tissue
6. 6.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) a zigzag-folded sheet (c) rolled paper tubes (d) a U-shaped channel
7. 7.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) one flat sheet (c) a U-shaped channel (d) rolled paper tubes
8. 8.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) paper with folded edges (c) one flat sheet (d) a wet flat sheet
9. 9.⚖️ 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
10. 10.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we change it (c) we keep it the same
11. 11.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a torn flat sheet (c) a zigzag-folded sheet (d) a flat tissue
12. 12.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
13. 13.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) tubes (c) triangles
14. 14.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) arches and domes (c) triangles
15. 15.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) low and steady (d) high and wobbly
16. 16.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) a temple dome (c) a bridge truss (d) a round pillar
17. 17.True or false: a round pillar gets its strength from arches or domes. (a) False (b) True
18. 18.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
19. 19.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
20. 20.⚖️ 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
21. 21.True or false: one flat sheet makes a strong bridge. (a) False (b) True
22. 22.True or false: an eggshell gets its strength from arches or domes. (a) False (b) True
23. 23.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) the same number of (c) fewer (d) more
24. 24.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) yeast (c) two books (d) coins
25. 25.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a ruler (c) a battery cell (d) yeast
26. 26.True or false: a roof frame gets its strength from arches or domes. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) a wet flat sheet (b) rolled paper tubes (c) paper with folded edges (d) a zigzag-folded sheet
28. 28.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) two books (c) a battery cell (d) yeast
29. 29.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we keep it the same (c) we measure it
30. 30.True or false: two books is needed for the paper bridge. (a) False (b) True
31. 31.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) the kind of paper
32. 32.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) one flat sheet (c) a flat tissue (d) a wet flat sheet
33. 33.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) a ruler (c) two books (d) coins
34. 34.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
35. 35.🔍 Which is the odd one out? (a) a flat tissue (b) a U-shaped channel (c) paper with folded edges (d) rolled paper tubes
36. 36.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds are magnetic (c) folds make it wet (d) folds make it stiffer
37. 37.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
38. 38.True or false: a zigzag-folded sheet makes a strong bridge. (a) True (b) False
39. 39.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
40. 40.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we keep it the same (c) we measure it

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