Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 235 · 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.⚖️ 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
2. 2.🔍 Which is the odd one out? (a) a U-shaped channel (b) rolled paper tubes (c) a zigzag-folded sheet (d) a wet flat sheet
3. 3.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) yeast (c) a ruler (d) a mirror
4. 4.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) skip washing (c) lick your fingers (d) rub your eyes
5. 5.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
6. 6.🌉 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 wet (d) folds make it stiffer
7. 7.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a U-shaped channel (c) a torn flat sheet (d) a zigzag-folded sheet
8. 8.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
9. 9.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a battery cell (d) a ruler
10. 10.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
11. 11.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) triangles (c) arches and domes
12. 12.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
13. 13.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) the same number of (c) fewer (d) more
14. 14.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) two books (c) a battery cell (d) coins
15. 15.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a bridge truss (c) a hollow bird bone (d) an eggshell
16. 16.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
17. 17.🧺 Which of these is needed for the paper bridge? (a) coins (b) a mirror (c) a balloon (d) a magnet
18. 18.🔍 Which is the odd one out? (a) one flat sheet (b) a U-shaped channel (c) rolled paper tubes (d) a zigzag-folded sheet
19. 19.🔍 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
20. 20.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) fewer coins (c) only water (d) more coins
21. 21.🏗️ Where does an eggshell get its strength from? (a) triangles (b) tubes (c) arches and domes
22. 22.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) turmeric powder (c) a magnet (d) two books
23. 23.🧺 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) turmeric powder
24. 24.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a magnet (c) two books (d) sheets of paper
25. 25.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) the gap between books (c) the shape of the paper (d) the kind of coins
26. 26.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) low and steady (d) on a stool edge
27. 27.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) the gap between books (c) coins it holds (d) where coins are placed
28. 28.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the heart shape (c) the triangle (d) the star
29. 29.🏗️ Which of these gets its strength from a tube shape? (a) a bamboo pole (b) an electric tower (c) a bridge truss (d) an old stone bridge
30. 30.🔍 Which is the odd one out? (a) a torn flat sheet (b) a flat tissue (c) a U-shaped channel (d) a wet flat sheet
31. 31.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
32. 32.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
33. 33.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) triangles (c) tubes
34. 34.⚖️ 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
35. 35.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
36. 36.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
37. 37.🏗️ Which of these gets its strength from a tube shape? (a) a round pillar (b) a roof frame (c) an eggshell (d) an electric tower
38. 38.True or false: coins is not needed for the paper bridge. (a) True (b) False
39. 39.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a magnet (c) coins (d) sheets of paper
40. 40.True or false: a magnet is needed for the paper bridge. (a) True (b) False

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