Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 871 · 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 a magnet for the paper bridge? (a) needed (b) not needed
2. 2.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds add glue (c) folds make it stiffer (d) folds are magnetic
3. 3.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
4. 4.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) False (b) True
5. 5.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
6. 6.🛟 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
7. 7.🔍 Which is the odd one out? (a) a wet flat sheet (b) a U-shaped channel (c) rolled paper tubes (d) paper with folded edges
8. 8.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) more (c) fewer (d) zero
9. 9.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) turmeric powder (d) sheets of paper
11. 11.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we keep it the same (c) we measure it
12. 12.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) a ruler (d) turmeric powder
13. 13.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) a mirror (d) coins
14. 14.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
15. 15.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) True (b) False
16. 16.True or false: one flat sheet makes a strong bridge. (a) False (b) True
17. 17.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a magnet (d) coins
18. 18.🏗️ Where does an eggshell get its strength from? (a) triangles (b) tubes (c) arches and domes
19. 19.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) arches and domes (c) tubes
20. 20.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we keep it the same (c) we measure it
21. 21.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) one flat sheet (c) a U-shaped channel (d) paper with folded edges
22. 22.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) more coins (d) fewer coins
23. 23.🏗️ Where does a round pillar get its strength from? (a) triangles (b) arches and domes (c) tubes
24. 24.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
25. 25.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a torn flat sheet (c) rolled paper tubes (d) paper with folded edges
26. 26.True or false: a mirror is needed for the paper bridge. (a) False (b) True
27. 27.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
28. 28.🏗️ Where does a temple dome get its strength from? (a) triangles (b) tubes (c) arches and domes
29. 29.True or false: coins is needed for the paper bridge. (a) True (b) False
30. 30.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True
31. 31.True or false: a hollow bird bone gets its strength from arches or domes. (a) False (b) True
32. 32.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) an old stone bridge (c) a bamboo pole (d) a roof frame
33. 33.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
34. 34.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
35. 35.⚖️ 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
36. 36.True or false: a round pillar gets its strength from triangles. (a) True (b) False
37. 37.⚖️ 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 paper (c) the gap between books (d) the kind of coins
38. 38.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is made of steel (c) it is magnetic (d) it is very hot
39. 39.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) lick your fingers (c) rub your eyes (d) wash your hands
40. 40.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) False (b) True

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