Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 376 · 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.🧺 Which of these is needed for the paper bridge? (a) two books (b) a balloon (c) a battery cell (d) turmeric powder
2. 2.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) a battery cell (d) sheets of paper
3. 3.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a wet flat sheet (c) one flat sheet (d) a zigzag-folded sheet
4. 4.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
5. 5.True or false: a mirror is not needed for the paper bridge. (a) True (b) False
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) a ruler (c) sheets of paper (d) two books
7. 7.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
8. 8.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the kind of paper (c) the shape of the paper
9. 9.⚖️ 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
10. 10.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the heart shape (c) the triangle (d) the square
11. 11.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
12. 12.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) high and wobbly (c) on top of a pet (d) on a stool edge
13. 13.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) rolled paper tubes (d) a wet flat sheet
14. 14.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we measure it (b) we change it (c) we keep it the same
15. 15.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) more coins (c) fewer coins (d) the same coins
16. 16.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
17. 17.🏗️ Which of these gets its strength from a tube shape? (a) a round pillar (b) an old stone bridge (c) a temple dome (d) a roof frame
18. 18.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) an electric tower (c) a hollow bird bone (d) a temple dome
19. 19.True or false: a hollow bird bone gets its strength from triangles. (a) False (b) True
20. 20.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
21. 21.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) tubes (c) triangles
22. 22.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it sags and falls (c) it turns to card (d) it floats up
23. 23.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a magnet (c) a ruler (d) sheets of paper
24. 24.True or false: a temple dome gets its strength from a tube shape. (a) True (b) False
25. 25.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) coins it holds (c) the kind of paper (d) the shape of the paper
26. 26.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we keep it the same (c) we measure it
27. 27.⚖️ 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
28. 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) turmeric powder (c) sheets of paper (d) two books
29. 29.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) tubes (c) triangles
30. 30.🌉 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 wet (d) folds make it stiffer
31. 31.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is very hot (c) it is made of steel (d) it is magnetic
32. 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) a ruler (d) yeast
33. 33.🛟 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
34. 34.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) an eggshell (c) an electric tower (d) a bamboo pole
35. 35.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
36. 36.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) not at all (c) more (d) less
37. 37.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
38. 38.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) False (b) True
39. 39.🏗️ Where does an electric tower get its strength from? (a) tubes (b) arches and domes (c) triangles
40. 40.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True

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