Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 666 · 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 mirror is needed for the paper bridge. (a) True (b) False
2. 2.🏗️ Where does a temple dome get its strength from? (a) tubes (b) arches and domes (c) triangles
3. 3.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) tubes (c) triangles
4. 4.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
5. 5.True or false: one flat sheet makes a weak bridge. (a) False (b) True
6. 6.🏗️ Where does a round pillar get its strength from? (a) triangles (b) arches and domes (c) tubes
7. 7.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) False (b) True
8. 8.True or false: a battery cell is needed for the paper bridge. (a) False (b) True
9. 9.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) two books (c) a mirror (d) yeast
10. 10.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) more coins (d) fewer coins
11. 11.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) on a stool edge (c) high and wobbly (d) low and steady
12. 12.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
13. 13.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the shape of the paper (c) where coins are placed (d) the kind of paper
14. 14.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a wet flat sheet (c) a zigzag-folded sheet (d) one flat sheet
15. 15.⚖️ 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
16. 16.True or false: a round pillar gets its strength from arches or domes. (a) True (b) False
17. 17.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we change it (c) we keep it the same
18. 18.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
19. 19.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the kind of coins (c) the shape of the paper
20. 20.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
21. 21.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) sheets of paper (d) a balloon
23. 23.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
24. 24.⚖️ 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
25. 25.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a mirror (c) a ruler (d) two books
26. 26.🔍 Which is the odd one out? (a) a torn flat sheet (b) a flat tissue (c) one flat sheet (d) rolled paper tubes
27. 27.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it stiffer (c) folds add glue (d) folds make it wet
28. 28.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) wash your hands (c) skip washing (d) lick your fingers
29. 29.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) paper with folded edges (d) one flat sheet
30. 30.True or false: two books is needed for the paper bridge. (a) False (b) True
31. 31.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) coins (c) a magnet (d) sheets of paper
32. 32.⚖️ 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
33. 33.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) two books (c) sheets of paper (d) turmeric powder
34. 34.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) less (c) upward (d) more
35. 35.True or false: a magnet is needed for the paper bridge. (a) True (b) False
36. 36.True or false: two books is not needed for the paper bridge. (a) True (b) False
37. 37.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is magnetic (c) it is very hot (d) its curved arch shape
38. 38.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
40. 40.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) a hollow bird bone (c) an electric tower (d) an old stone bridge

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