Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 487 · 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: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) more (c) the same number of (d) fewer
2. 2.⚖️ 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
3. 3.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
4. 4.🏗️ Which of these gets its strength from a tube shape? (a) a hollow bird bone (b) a temple dome (c) an old stone bridge (d) a bridge truss
5. 5.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
6. 6.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) an old stone bridge (c) a roof frame (d) a bamboo pole
7. 7.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it stiffer (c) folds make it wet (d) folds are magnetic
8. 8.True or false: one flat sheet makes a weak bridge. (a) False (b) True
9. 9.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) sheets of paper (d) a battery cell
11. 11.True or false: two books is not needed for the paper bridge. (a) True (b) False
12. 12.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it sags and falls (c) it floats up (d) it turns to card
13. 13.⚖️ 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 change it (c) we measure it
14. 14.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
15. 15.True or false: a flat tissue makes a strong bridge. (a) False (b) True
16. 16.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
17. 17.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
18. 18.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
19. 19.🔍 Which is the odd one out? (a) paper with folded edges (b) a zigzag-folded sheet (c) a U-shaped channel (d) a torn flat sheet
20. 20.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
21. 21.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a wet flat sheet (c) a flat tissue (d) a zigzag-folded sheet
22. 22.🧺 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
23. 23.True or false: an eggshell gets its strength from a tube shape. (a) True (b) False
24. 24.🏗️ Where does an old stone bridge get its strength from? (a) arches and domes (b) triangles (c) tubes
25. 25.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) where coins are placed (c) the shape of the paper (d) coins it holds
26. 26.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) low and steady (c) on top of a pet (d) high and wobbly
27. 27.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a torn flat sheet (c) a flat tissue (d) rolled paper tubes
28. 28.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
29. 29.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) sheets of paper (d) a mirror
31. 31.True or false: a mirror is needed for the paper bridge. (a) True (b) False
32. 32.True or false: an old stone bridge gets its strength from arches or domes. (a) False (b) True
33. 33.⚖️ 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
34. 34.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) a U-shaped channel (c) rolled paper tubes (d) paper with folded edges
35. 35.⚖️ 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
36. 36.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
37. 37.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
38. 38.🏗️ Which of these gets its strength from triangles? (a) a roof frame (b) a hollow bird bone (c) a round pillar (d) an eggshell
39. 39.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) skip washing (d) lick your fingers
40. 40.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) False (b) True

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