Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 971 · 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.True or false: yeast is needed for the paper bridge. (a) False (b) True
2. 2.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds are magnetic (c) folds make it wet (d) folds add glue
3. 3.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a balloon (c) a mirror (d) coins
4. 4.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it gets stronger (c) it turns to card (d) it sags and falls
5. 5.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we keep it the same (b) we change it (c) we measure it
6. 6.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) one flat sheet (c) rolled paper tubes (d) a zigzag-folded sheet
7. 7.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) yeast (d) sheets of paper
9. 9.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) True (b) False
10. 10.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) more (d) the same number of
11. 11.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a battery cell (c) a mirror (d) two books
12. 12.True or false: a bamboo pole gets its strength from a tube shape. (a) True (b) False
13. 13.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we keep it the same (c) we change it
14. 14.🔍 Which is the odd one out? (a) a torn flat sheet (b) a wet flat sheet (c) rolled paper tubes (d) one flat sheet
15. 15.🔍 Which is the odd one out? (a) a flat tissue (b) a zigzag-folded sheet (c) paper with folded edges (d) rolled paper tubes
16. 16.True or false: an eggshell gets its strength from a tube shape. (a) False (b) True
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
18. 18.True or false: two books is not needed for the paper bridge. (a) False (b) True
19. 19.🏗️ Where does a round pillar get its strength from? (a) tubes (b) arches and domes (c) triangles
20. 20.⚖️ 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
21. 21.⚖️ 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
22. 22.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) turmeric powder (d) two books
23. 23.⚖️ 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
24. 24.True or false: one flat sheet makes a strong bridge. (a) False (b) True
25. 25.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) the kind of coins
26. 26.True or false: a magnet is needed for the paper bridge. (a) True (b) False
27. 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) a battery cell (d) coins
28. 28.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) wash your hands (c) skip washing (d) rub your eyes
29. 29.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
30. 30.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
31. 31.⚖️ 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 gap between books (c) the kind of paper (d) the kind of coins
32. 32.🔍 Which is the odd one out? (a) rolled paper tubes (b) paper with folded edges (c) a wet flat sheet (d) a zigzag-folded sheet
33. 33.🧺 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
34. 34.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) rolled paper tubes (c) a torn flat sheet (d) a flat tissue
35. 35.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
36. 36.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) where coins are placed (c) the kind of coins (d) the shape of the paper
37. 37.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) one flat sheet (c) paper with folded edges (d) a wet flat sheet
38. 38.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
39. 39.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is magnetic (c) it is very hot (d) it is made of steel
40. 40.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) False (b) True

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