Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 729 · 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.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the gap between books (b) the shape of the paper (c) coins it holds
2. 2.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) an eggshell (c) a round pillar (d) a roof frame
3. 3.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) two books (d) a magnet
4. 4.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we keep it the same (c) we change it
5. 5.True or false: a bridge truss gets its strength from a tube shape. (a) True (b) False
6. 6.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
7. 7.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) two books (c) yeast (d) a ruler
8. 8.True or false: a battery cell is not needed for the paper bridge. (a) True (b) False
9. 9.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
10. 10.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
11. 11.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) the same number of (d) more
12. 12.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) coins (c) a magnet (d) sheets of paper
13. 13.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the square (c) the star (d) the heart shape
14. 14.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
15. 15.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) turmeric powder (c) coins (d) sheets of paper
16. 16.True or false: two books is not needed for the paper bridge. (a) True (b) False
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) False (b) True
18. 18.True or false: a ruler is needed for the paper bridge. (a) True (b) False
19. 19.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it sags and falls (c) it turns to card (d) it gets stronger
20. 20.⚖️ 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
21. 21.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) arches and domes (c) triangles
22. 22.True or false: a round pillar gets its strength from arches or domes. (a) False (b) True
23. 23.🏗️ Where does a roof frame get its strength from? (a) tubes (b) arches and domes (c) triangles
24. 24.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) one flat sheet (c) a U-shaped channel (d) rolled paper tubes
25. 25.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) only water (c) fewer coins (d) the same coins
26. 26.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
27. 27.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) tubes (c) triangles
28. 28.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
29. 29.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) two books (d) yeast
30. 30.⚖️ 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 measure it (c) we change it
31. 31.🛟 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
32. 32.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a wet flat sheet (c) a flat tissue (d) one flat sheet
33. 33.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds add glue (c) folds make it wet (d) folds are magnetic
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) two books (c) coins (d) sheets of paper
35. 35.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) rolled paper tubes (c) a zigzag-folded sheet (d) a U-shaped channel
36. 36.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) coins it holds (c) the kind of coins (d) the shape of the paper
37. 37.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) True (b) False
38. 38.⚖️ 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
39. 39.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) a temple dome (c) a bamboo pole (d) an eggshell
40. 40.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) wash your hands (d) lick your fingers

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