Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 173 · 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.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) the same coins (c) only water (d) more coins
2. 2.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) lick your fingers (c) wash your hands (d) rub your eyes
3. 3.⚖️ 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
4. 4.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we keep it the same (c) we change it
5. 5.⚖️ 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
6. 6.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the triangle (c) the square (d) the star
7. 7.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
8. 8.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) rolled paper tubes (c) paper with folded edges (d) a zigzag-folded sheet
9. 9.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
10. 10.True or false: two books is not needed for the paper bridge. (a) True (b) False
11. 11.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) yeast (c) coins (d) a battery cell
12. 12.True or false: a battery cell is needed for the paper bridge. (a) True (b) False
13. 13.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) more (d) the same number of
14. 14.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
15. 15.True or false: turmeric powder is not needed for the paper bridge. (a) True (b) False
16. 16.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) an old stone bridge (c) an electric tower (d) a round pillar
17. 17.True or false: a balloon is needed for the paper bridge. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) a wet flat sheet (b) a zigzag-folded sheet (c) a torn flat sheet (d) a flat tissue
19. 19.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) one flat sheet (c) a flat tissue (d) rolled paper tubes
20. 20.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) True (b) False
21. 21.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) paper with folded edges (c) a wet flat sheet (d) a zigzag-folded sheet
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) sheets of paper (c) a ruler (d) two books
23. 23.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
24. 24.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) False (b) True
25. 25.True or false: yeast is not needed for the paper bridge. (a) True (b) False
26. 26.True or false: yeast is needed for the paper bridge. (a) True (b) False
27. 27.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
28. 28.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of coins (b) coins it holds (c) the shape of the paper
29. 29.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) a ruler (c) sheets of paper (d) coins
30. 30.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
31. 31.True or false: paper with folded edges makes a strong bridge. (a) True (b) False
32. 32.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) sheets of paper (c) a battery cell (d) a mirror
33. 33.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) two books (c) a magnet (d) coins
34. 34.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a bamboo pole (c) a temple dome (d) a hollow bird bone
35. 35.True or false: an electric tower gets its strength from a tube shape. (a) True (b) False
36. 36.True or false: an eggshell gets its strength from a tube shape. (a) True (b) False
37. 37.🏗️ Where does an electric tower get its strength from? (a) triangles (b) tubes (c) arches and domes
38. 38.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) False (b) True
39. 39.🔮 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
40. 40.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False

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