Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 691 · 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 kind of paper”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.True or false: a flat tissue makes a weak bridge. (a) False (b) True
3. 3.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
4. 4.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) two books (d) a magnet
5. 5.True or false: an old stone bridge gets its strength from a tube shape. (a) True (b) False
6. 6.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it turns to card (c) it sags and falls (d) it gets stronger
7. 7.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
8. 8.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) arches and domes (c) triangles
9. 9.🏗️ Which of these gets its strength from triangles? (a) a roof frame (b) a hollow bird bone (c) a temple dome (d) an old stone bridge
10. 10.⚖️ 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) coins it holds (c) the kind of paper (d) the gap between books
11. 11.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
12. 12.🏗️ Where does a round pillar get its strength from? (a) tubes (b) triangles (c) arches and domes
13. 13.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) less (c) not at all (d) more
14. 14.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
15. 15.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
16. 16.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) rolled paper tubes (d) a torn flat sheet
17. 17.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
18. 18.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) lick your fingers (c) wash your hands (d) rub your eyes
19. 19.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
20. 20.🌉 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 stiffer (d) folds make it wet
21. 21.True or false: a flat tissue makes a strong bridge. (a) True (b) False
22. 22.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) low and steady (c) on a stool edge (d) on top of a pet
23. 23.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we keep it the same (c) we change it
24. 24.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) the same number of (c) fewer (d) zero
25. 25.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
26. 26.🔍 Which is the odd one out? (a) paper with folded edges (b) a wet flat sheet (c) a flat tissue (d) one flat sheet
27. 27.True or false: one flat sheet makes a weak bridge. (a) True (b) False
28. 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) coins (d) a balloon
29. 29.True or false: coins is needed for the paper bridge. (a) False (b) True
30. 30.⚖️ 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
31. 31.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
32. 32.⚖️ 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) where coins are placed (d) the gap between books
33. 33.🧺 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
34. 34.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
35. 35.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) sheets of paper (c) a ruler (d) coins
36. 36.⚖️ 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
37. 37.🔍 Which is the odd one out? (a) rolled paper tubes (b) a flat tissue (c) a wet flat sheet (d) a torn flat sheet
38. 38.True or false: a mirror is needed for the paper bridge. (a) False (b) True
39. 39.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a temple dome (c) a bridge truss (d) an old stone bridge
40. 40.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) a U-shaped channel (c) rolled paper tubes (d) paper with folded edges

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