Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 189 · 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: two books is not needed for the paper bridge. (a) True (b) False
2. 2.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) rolled paper tubes (c) paper with folded edges (d) a U-shaped channel
3. 3.True or false: a mirror is needed for the paper bridge. (a) False (b) True
4. 4.True or false: an eggshell gets its strength from arches or domes. (a) False (b) True
5. 5.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) where coins are placed (c) coins it holds (d) the shape of the paper
6. 6.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on a stool edge (c) on top of a pet (d) high and wobbly
7. 7.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) more (c) less (d) upward
8. 8.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) skip washing (d) wash your hands
9. 9.⚖️ 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
10. 10.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) arches and domes (c) tubes
11. 11.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) True (b) False
12. 12.True or false: a ruler is not needed for the paper bridge. (a) True (b) False
13. 13.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
14. 14.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
15. 15.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) a magnet (d) two books
16. 16.🧺 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
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is the one thing we change. (a) True (b) False
18. 18.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it turns to card (c) it floats up (d) it gets stronger
19. 19.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) the same number of (c) fewer (d) zero
20. 20.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the star (c) the triangle (d) the heart shape
21. 21.🔍 Which is the odd one out? (a) one flat sheet (b) a torn flat sheet (c) a zigzag-folded sheet (d) a wet flat sheet
22. 22.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) rolled paper tubes (d) a torn flat sheet
23. 23.⚖️ 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
24. 24.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it stiffer (c) folds are magnetic (d) folds make it wet
25. 25.True or false: one flat sheet makes a strong bridge. (a) True (b) False
26. 26.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) an electric tower (c) an old stone bridge (d) an eggshell
27. 27.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a mirror (c) two books (d) turmeric powder
28. 28.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) tubes (c) triangles
29. 29.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
30. 30.True or false: a ruler is needed for the paper bridge. (a) True (b) False
31. 31.True or false: a magnet is needed for the paper bridge. (a) False (b) True
32. 32.True or false: a round pillar gets its strength from arches or domes. (a) False (b) True
33. 33.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
34. 34.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
35. 35.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
36. 36.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
37. 37.🏗️ Where does an electric tower get its strength from? (a) tubes (b) triangles (c) arches and domes
38. 38.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) only water (d) fewer coins
39. 39.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
40. 40.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True

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