Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 31 · 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? What do we do with “the gap between books”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
3. 3.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we keep it the same (c) we measure it
4. 4.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
5. 5.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the heart shape (c) the star (d) the triangle
6. 6.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) arches and domes (c) triangles
7. 7.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
8. 8.🏗️ Where does a temple dome get its strength from? (a) tubes (b) triangles (c) arches and domes
9. 9.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) rub your eyes (c) lick your fingers (d) wash your hands
10. 10.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) an old stone bridge (c) a bridge truss (d) a hollow bird bone
11. 11.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
12. 12.⚖️ 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 measure it (c) we change it
13. 13.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) yeast (d) a ruler
14. 14.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) one flat sheet (c) a flat tissue (d) paper with folded edges
15. 15.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) sheets of paper (c) two books (d) a ruler
16. 16.🔍 Which is the odd one out? (a) paper with folded edges (b) a zigzag-folded sheet (c) a torn flat sheet (d) a U-shaped channel
17. 17.True or false: paper with folded edges makes a strong bridge. (a) True (b) False
18. 18.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
19. 19.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) False (b) True
20. 20.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) arches and domes (c) tubes
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a balloon (c) sheets of paper (d) a ruler
22. 22.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) where coins are placed (c) the gap between books (d) coins it holds
23. 23.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on a stool edge (c) on top of a pet (d) high and wobbly
24. 24.🔍 Which is the odd one out? (a) rolled paper tubes (b) a zigzag-folded sheet (c) one flat sheet (d) paper with folded edges
25. 25.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a torn flat sheet (c) a wet flat sheet (d) a flat tissue
26. 26.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
27. 27.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) less (c) not at all (d) upward
28. 28.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
29. 29.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a magnet (c) a ruler (d) a battery cell
30. 30.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a mirror (c) coins (d) sheets of paper
31. 31.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a U-shaped channel (c) paper with folded edges (d) a wet flat sheet
32. 32.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
33. 33.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
34. 34.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) a wet flat sheet (d) paper with folded edges
35. 35.True or false: a temple dome gets its strength from a tube shape. (a) False (b) True
36. 36.True or false: a hollow bird bone gets its strength from a tube shape. (a) False (b) True
37. 37.🏗️ Where does an eggshell get its strength from? (a) triangles (b) tubes (c) arches and domes
38. 38.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) fewer coins (d) more coins
39. 39.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
40. 40.🌉 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

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