Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 694 · 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 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 star (d) the square
2. 2.⚖️ 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
3. 3.⚖️ 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
4. 4.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
5. 5.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) sheets of paper (d) yeast
6. 6.🔮 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
7. 7.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) where coins are placed (c) the gap between books (d) coins it holds
8. 8.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) paper with folded edges (d) one flat sheet
9. 9.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
10. 10.🏗️ Where does an electric tower get its strength from? (a) tubes (b) triangles (c) arches and domes
11. 11.⚖️ 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) the kind of coins (c) the gap between books (d) where coins are placed
12. 12.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
13. 13.True or false: coins is not needed for the paper bridge. (a) True (b) False
14. 14.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
15. 15.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
16. 16.🔍 Which is the odd one out? (a) a wet flat sheet (b) one flat sheet (c) a torn flat sheet (d) a zigzag-folded sheet
17. 17.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) a ruler (c) coins (d) sheets of paper
18. 18.🔍 Which is the odd one out? (a) one flat sheet (b) rolled paper tubes (c) a wet flat sheet (d) a flat tissue
19. 19.True or false: a bridge truss gets its strength from arches or domes. (a) False (b) True
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) sheets of paper (c) two books (d) a ruler
21. 21.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
22. 22.True or false: a bamboo pole gets its strength from arches or domes. (a) True (b) False
23. 23.True or false: coins is needed for the paper bridge. (a) False (b) True
24. 24.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
25. 25.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) one flat sheet (c) rolled paper tubes (d) a flat tissue
26. 26.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) high and wobbly (c) low and steady (d) on top of a pet
27. 27.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
28. 28.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
29. 29.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a wet flat sheet (c) a U-shaped channel (d) a flat tissue
30. 30.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) a roof frame (c) an old stone bridge (d) a hollow bird bone
31. 31.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a wet flat sheet (c) paper with folded edges (d) a zigzag-folded sheet
32. 32.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it gets stronger (c) it sags and falls (d) it floats up
33. 33.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds make it wet (c) folds are magnetic (d) folds add glue
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) False (b) True
35. 35.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
36. 36.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) skip washing (d) wash your hands
37. 37.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
38. 38.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) more (c) the same number of (d) fewer
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) True (b) False
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) sheets of paper (d) a balloon

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids