Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 196 · 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 a balloon for the paper bridge? (a) not needed (b) needed
2. 2.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the gap between books (b) coins it holds (c) the kind of paper (d) the shape of the paper
3. 3.🔍 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
4. 4.🔍 Which is the odd one out? (a) rolled paper tubes (b) a flat tissue (c) one flat sheet (d) a torn flat sheet
5. 5.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) a balloon (d) two books
6. 6.True or false: an electric tower gets its strength from arches or domes. (a) False (b) True
7. 7.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a U-shaped channel (c) a wet flat sheet (d) paper with folded edges
8. 8.🏗️ Where does a round pillar get its strength from? (a) triangles (b) tubes (c) arches and domes
9. 9.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) an electric tower (c) a roof frame (d) a hollow bird bone
10. 10.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a zigzag-folded sheet (c) a torn flat sheet (d) a flat tissue
11. 11.True or false: paper with folded edges makes a weak bridge. (a) True (b) False
12. 12.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) yeast (c) coins (d) a battery cell
13. 13.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) low and steady (c) on top of a pet (d) high and wobbly
14. 14.⚖️ 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
15. 15.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we change it (c) we measure it
16. 16.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
17. 17.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds are magnetic (c) folds make it stiffer (d) folds make it wet
18. 18.True or false: two books is not needed for the paper bridge. (a) True (b) False
19. 19.⚖️ 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 change it (c) we keep it the same
20. 20.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we keep it the same (c) we change it
21. 21.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
22. 22.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) less (c) more (d) upward
23. 23.🌉 Does a wet flat sheet 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: where coins are placed is what we measure. (a) False (b) True
25. 25.🧺 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) yeast
26. 26.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the square (c) the triangle (d) the heart shape
27. 27.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
28. 28.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) wash your hands (c) rub your eyes (d) skip washing
29. 29.🔍 Which is the odd one out? (a) a torn flat sheet (b) a U-shaped channel (c) one flat sheet (d) a wet flat sheet
30. 30.⚖️ 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
31. 31.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) the same coins (c) only water (d) more coins
32. 32.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
33. 33.True or false: turmeric powder is not needed for the paper bridge. (a) True (b) False
34. 34.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a flat tissue (c) rolled paper tubes (d) paper with folded edges
35. 35.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
36. 36.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
37. 37.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) a temple dome (c) a bridge truss (d) an eggshell
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) coins (d) a battery cell
39. 39.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
40. 40.True or false: a balloon is needed for the paper bridge. (a) False (b) True

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