Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 331 · 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 is the odd one out? (a) paper with folded edges (b) a torn flat sheet (c) a zigzag-folded sheet (d) rolled paper tubes
2. 2.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
3. 3.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
4. 4.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
5. 5.True or false: yeast is needed for the paper bridge. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) one flat sheet (b) a wet flat sheet (c) a flat tissue (d) a U-shaped channel
7. 7.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) two books (d) a battery cell
8. 8.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) fewer coins (c) the same coins (d) more coins
9. 9.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) tubes (c) triangles
10. 10.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) two books (c) a mirror (d) coins
11. 11.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) True (b) False
12. 12.True or false: a battery cell is needed for the paper bridge. (a) True (b) False
13. 13.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we keep it the same (b) we measure it (c) we change it
14. 14.🥚 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
15. 15.True or false: a roof frame gets its strength from arches or domes. (a) False (b) True
16. 16.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) a U-shaped channel (c) rolled paper tubes (d) paper with folded edges
17. 17.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) less (c) not at all (d) upward
18. 18.True or false: a flat tissue makes a strong bridge. (a) False (b) True
19. 19.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
20. 20.True or false: a round pillar gets its strength from triangles. (a) True (b) False
21. 21.True or false: an old stone bridge gets its strength from arches or domes. (a) False (b) True
22. 22.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
23. 23.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) a bamboo pole (c) a roof frame (d) an electric tower
24. 24.True or false: two books is not needed for the paper bridge. (a) True (b) False
25. 25.🏗️ Which of these gets its strength from arches or domes? (a) a temple dome (b) an electric tower (c) a bridge truss (d) a hollow bird bone
26. 26.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
27. 27.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we keep it the same (b) we change it (c) we measure it
28. 28.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
29. 29.🛟 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
30. 30.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
31. 31.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a zigzag-folded sheet (c) paper with folded edges (d) one flat sheet
32. 32.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it gets stronger (c) it turns to card (d) it floats up
33. 33.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
35. 35.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) more (c) the same number of (d) fewer
36. 36.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
37. 37.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we keep it the same (c) we measure it
38. 38.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) paper with folded edges (c) a wet flat sheet (d) a U-shaped channel
39. 39.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it stiffer (c) folds make it wet (d) folds are magnetic
40. 40.🏗️ Where does an eggshell get its strength from? (a) tubes (b) arches and domes (c) triangles

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