Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 89 · 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.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
2. 2.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) a wet flat sheet (d) a zigzag-folded sheet
3. 3.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we measure it (c) we keep it the same
4. 4.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
5. 5.🏗️ Where does a temple dome get its strength from? (a) triangles (b) arches and domes (c) tubes
6. 6.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) arches and domes (c) tubes
7. 7.🔍 Which is the odd one out? (a) paper with folded edges (b) a torn flat sheet (c) a zigzag-folded sheet (d) a U-shaped channel
8. 8.🔍 Which is the odd one out? (a) paper with folded edges (b) a U-shaped channel (c) rolled paper tubes (d) a flat tissue
9. 9.True or false: a zigzag-folded sheet makes a strong bridge. (a) True (b) False
10. 10.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
11. 11.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the shape of the paper (b) the kind of coins (c) where coins are placed (d) the gap between books
12. 12.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) wash your hands (d) lick your fingers
13. 13.True or false: yeast is needed for the paper bridge. (a) False (b) True
14. 14.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
15. 15.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) where coins are placed (c) the kind of coins (d) coins it holds
16. 16.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) arches and domes (c) tubes
17. 17.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
18. 18.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it floats up (c) it turns to card (d) it sags and falls
19. 19.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
20. 20.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds are magnetic (c) folds add glue (d) folds make it stiffer
21. 21.True or false: an eggshell gets its strength from arches or domes. (a) False (b) True
22. 22.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) tubes (c) arches and domes
23. 23.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
24. 24.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) more (c) not at all (d) upward
25. 25.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) on a stool edge (c) low and steady (d) high and wobbly
26. 26.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
28. 28.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) a bridge truss (c) a round pillar (d) an old stone bridge
29. 29.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) fewer coins (c) the same coins (d) more coins
30. 30.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we measure it (c) we keep it the same
31. 31.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
32. 32.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
33. 33.True or false: coins is not needed for the paper bridge. (a) False (b) True
34. 34.True or false: yeast is not needed for the paper bridge. (a) True (b) False
35. 35.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) more (c) fewer (d) zero
36. 36.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we measure it (c) we keep it the same
37. 37.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) rolled paper tubes (d) a wet flat sheet
38. 38.True or false: a battery cell is not needed for the paper bridge. (a) True (b) False
39. 39.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
40. 40.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) rolled paper tubes (c) a U-shaped channel (d) a flat tissue

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