Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 5 · 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.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) a ruler (c) sheets of paper (d) coins
2. 2.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) zero (c) fewer (d) the same number of
3. 3.🧺 Which of these is not needed for the paper bridge? (a) a mirror (b) two books (c) coins (d) a ruler
4. 4.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on top of a pet (c) on a stool edge (d) high and wobbly
5. 5.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
6. 6.⚖️ 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
7. 7.🧺 Which of these is not needed for the paper bridge? (a) a balloon (b) two books (c) sheets of paper (d) a ruler
8. 8.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) a temple dome (c) an eggshell (d) an electric tower
9. 9.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) triangles (c) arches and domes
10. 10.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) False (b) True
11. 11.🔍 Which is the odd one out? (a) paper with folded edges (b) a wet flat sheet (c) a U-shaped channel (d) a zigzag-folded sheet
12. 12.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
13. 13.⚖️ 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
14. 14.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a torn flat sheet (c) a flat tissue (d) paper with folded edges
15. 15.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
16. 16.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) a round pillar (c) an electric tower (d) an old stone bridge
17. 17.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a temple dome (c) an old stone bridge (d) a roof frame
18. 18.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
19. 19.True or false: an old stone bridge gets its strength from triangles. (a) False (b) True
20. 20.🔍 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
21. 21.True or false: an eggshell gets its strength from triangles. (a) True (b) False
22. 22.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) rub your eyes (c) lick your fingers (d) wash your hands
23. 23.⚖️ 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
24. 24.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is made of steel (c) it is magnetic (d) it is very hot
25. 25.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) not at all (c) more (d) less
26. 26.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a magnet (c) coins (d) two books
27. 27.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
28. 28.🌉 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
29. 29.True or false: a ruler is not needed for the paper bridge. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) a U-shaped channel (b) one flat sheet (c) a flat tissue (d) a torn flat sheet
31. 31.⚖️ 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
32. 32.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) an eggshell (c) a bridge truss (d) a bamboo pole
33. 33.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a battery cell (c) coins (d) sheets of paper
34. 34.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) coins (c) turmeric powder (d) a balloon
35. 35.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) coins it holds (c) the shape of the paper (d) the kind of coins
36. 36.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) rolled paper tubes (c) a U-shaped channel (d) a zigzag-folded sheet
37. 37.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
38. 38.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) triangles (c) arches and domes
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a balloon (c) two books (d) coins
40. 40.True or false: two books is not needed for the paper bridge. (a) False (b) True

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