Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 728 · 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.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
2. 2.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we change it (c) we measure it
3. 3.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) on top of a pet (d) low and steady
4. 4.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we measure it (c) we keep it the same
5. 5.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) its curved arch shape (c) it is very hot (d) it is magnetic
6. 6.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) only water (c) more coins (d) fewer coins
7. 7.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the shape of the paper (b) where coins are placed (c) the kind of paper (d) coins it holds
8. 8.True or false: a balloon is needed for the paper bridge. (a) True (b) False
9. 9.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it floats up (c) it turns to card (d) it sags and falls
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a mirror (c) a ruler (d) two books
11. 11.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) tubes (c) triangles
12. 12.⚖️ 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
13. 13.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we keep it the same (b) we measure it (c) we change it
14. 14.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
15. 15.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) rub your eyes (c) lick your fingers (d) wash your hands
16. 16.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) the same number of (c) zero (d) more
17. 17.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) two books (c) a balloon (d) coins
18. 18.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) turmeric powder (c) two books (d) a ruler
19. 19.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
20. 20.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) where coins are placed (c) the gap between books (d) coins it holds
21. 21.🔍 Which is the odd one out? (a) rolled paper tubes (b) one flat sheet (c) a U-shaped channel (d) paper with folded edges
22. 22.🔍 Which is the odd one out? (a) rolled paper tubes (b) a zigzag-folded sheet (c) a wet flat sheet (d) paper with folded edges
23. 23.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) an electric tower (c) an eggshell (d) a bamboo pole
24. 24.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) a battery cell (d) two books
25. 25.True or false: a bamboo pole gets its strength from triangles. (a) True (b) False
26. 26.True or false: a ruler is needed for the paper bridge. (a) False (b) True
27. 27.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
28. 28.🌉 Which of these makes a strong bridge? (a) a U-shaped channel (b) a flat tissue (c) a torn flat sheet (d) one flat sheet
29. 29.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) sheets of paper (d) a magnet
30. 30.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a zigzag-folded sheet (c) a flat tissue (d) a U-shaped channel
31. 31.🔍 Which is the odd one out? (a) a U-shaped channel (b) rolled paper tubes (c) a flat tissue (d) paper with folded edges
32. 32.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
33. 33.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a bamboo pole (c) a bridge truss (d) an eggshell
34. 34.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the square (c) the star (d) the triangle
35. 35.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a bamboo pole (c) a temple dome (d) a round pillar
36. 36.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) a temple dome (c) a bamboo pole (d) a bridge truss
37. 37.True or false: an electric tower gets its strength from arches or domes. (a) True (b) False
38. 38.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) a bridge truss (c) an old stone bridge (d) a bamboo pole
39. 39.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
40. 40.🏗️ Where does an electric tower get its strength from? (a) triangles (b) arches and domes (c) tubes

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