Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 73 · 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.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
2. 2.True or false: a hollow bird bone gets its strength from triangles. (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 keep it the same (b) we measure it (c) we change it
4. 4.True or false: turmeric powder is not needed for the paper bridge. (a) True (b) False
5. 5.True or false: a flat tissue makes a weak bridge. (a) False (b) True
6. 6.True or false: two books is needed for the paper bridge. (a) True (b) False
7. 7.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
8. 8.🌉 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
9. 9.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it gets stronger (c) it floats up (d) it turns to card
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a balloon (d) coins
11. 11.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) an electric tower (c) a temple dome (d) a bamboo pole
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a ruler (d) a magnet
13. 13.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
14. 14.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) high and wobbly (c) on top of a pet (d) low and steady
15. 15.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) True (b) False
16. 16.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) coins (d) yeast
17. 17.🌉 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
18. 18.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
19. 19.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the gap between books (b) coins it holds (c) the shape of the paper
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) a battery cell (d) coins
21. 21.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
22. 22.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
23. 23.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
24. 24.⚖️ 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 change it (c) we measure it
25. 25.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we keep it the same (b) we measure it (c) we change it
26. 26.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
27. 27.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) fewer (d) more
28. 28.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) a U-shaped channel (d) a flat tissue
29. 29.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) turmeric powder (c) sheets of paper (d) a ruler
30. 30.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the kind of paper (c) coins it holds
31. 31.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
32. 32.True or false: coins is not needed for the paper bridge. (a) True (b) False
33. 33.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) True (b) False
35. 35.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False
36. 36.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) wash your hands (c) lick your fingers (d) skip washing
37. 37.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) triangles (c) tubes
38. 38.True or false: one flat sheet makes a weak bridge. (a) True (b) False
39. 39.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) the gap between books (c) the kind of coins (d) the shape of the paper
40. 40.True or false: a magnet is needed for the paper bridge. (a) True (b) False

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