Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 592 · 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.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
2. 2.🏗️ Where does an eggshell get its strength from? (a) triangles (b) arches and domes (c) tubes
3. 3.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on top of a pet (c) high and wobbly (d) on a stool edge
4. 4.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
5. 5.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
6. 6.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) the gap between books (c) the shape of the paper (d) coins it holds
7. 7.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we measure it (c) we keep it the same
8. 8.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) its curved arch shape (c) it is made of steel (d) it is very hot
9. 9.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) True (b) False
10. 10.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) sheets of paper (d) a battery cell
11. 11.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a torn flat sheet (d) rolled paper tubes
12. 12.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we keep it the same (b) we measure it (c) we change it
13. 13.True or false: a round pillar gets its strength from a tube shape. (a) False (b) True
14. 14.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) yeast (c) two books (d) sheets of paper
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) coins it holds (c) the gap between books
16. 16.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) the shape of the paper (c) coins it holds (d) the gap between books
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) False (b) True
18. 18.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) rolled paper tubes (c) a zigzag-folded sheet (d) one flat sheet
19. 19.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) lick your fingers (d) wash your hands
20. 20.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a temple dome (c) a bridge truss (d) a bamboo pole
21. 21.🧺 Which of these is not needed for the paper bridge? (a) coins (b) two books (c) yeast (d) a ruler
22. 22.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) a torn flat sheet (d) paper with folded edges
23. 23.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of paper (b) the shape of the paper (c) coins it holds
24. 24.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
25. 25.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
26. 26.⚖️ 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
27. 27.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) fewer coins (d) only water
28. 28.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds make it stiffer (c) folds add glue (d) folds are magnetic
29. 29.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the heart shape (c) the triangle (d) the star
30. 30.True or false: turmeric powder is not needed for the paper bridge. (a) True (b) False
31. 31.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a U-shaped channel (c) a wet flat sheet (d) one flat sheet
32. 32.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
33. 33.🏗️ Where does an electric tower get its strength from? (a) tubes (b) arches and domes (c) triangles
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) turmeric powder (c) sheets of paper (d) two books
35. 35.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
36. 36.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a battery cell (c) a ruler (d) a mirror
37. 37.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
38. 38.True or false: paper with folded edges makes a strong bridge. (a) True (b) False
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) sheets of paper (c) two books (d) a ruler
40. 40.True or false: a balloon is needed for the paper bridge. (a) False (b) True

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