Paper Bridge STEM Challenge Worksheet

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

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