Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 87 · 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.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it wet (c) folds add glue (d) folds make it stiffer
2. 2.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) the kind of coins (c) coins it holds (d) where coins are placed
3. 3.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
4. 4.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
5. 5.True or false: a bridge truss gets its strength from a tube shape. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) paper with folded edges (b) a U-shaped channel (c) one flat sheet (d) a zigzag-folded sheet
7. 7.⚖️ 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
8. 8.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
9. 9.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a U-shaped channel (c) paper with folded edges (d) a wet flat sheet
10. 10.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) arches and domes (c) tubes
11. 11.🔍 Which is the odd one out? (a) one flat sheet (b) a wet flat sheet (c) a flat tissue (d) paper with folded edges
12. 12.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
13. 13.⚖️ 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
14. 14.⚖️ 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
15. 15.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a battery cell (c) sheets of paper (d) coins
16. 16.⚖️ 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 paper (c) the kind of coins (d) where coins are placed
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) False (b) True
18. 18.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) a round pillar (c) a temple dome (d) a roof frame
19. 19.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
20. 20.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) tubes (c) triangles
21. 21.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
22. 22.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) True (b) False
23. 23.True or false: one flat sheet makes a strong bridge. (a) False (b) True
24. 24.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
25. 25.⚖️ 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 keep it the same (c) we change it
26. 26.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) more (c) zero (d) fewer
27. 27.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) one flat sheet (c) a U-shaped channel (d) a zigzag-folded sheet
28. 28.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
29. 29.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) lick your fingers (c) skip washing (d) rub your eyes
30. 30.🔍 Which is the odd one out? (a) a wet flat sheet (b) a zigzag-folded sheet (c) a U-shaped channel (d) rolled paper tubes
31. 31.True or false: a mirror is needed for the paper bridge. (a) False (b) True
32. 32.⚖️ 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
33. 33.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
34. 34.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
35. 35.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) only water (c) the same coins (d) fewer coins
36. 36.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
37. 37.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
38. 38.True or false: two books is needed for the paper bridge. (a) False (b) True
39. 39.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) a bridge truss (c) a roof frame (d) a hollow bird bone
40. 40.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed

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