Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 781 · 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: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
2. 2.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) True (b) False
3. 3.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
4. 4.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a temple dome (c) an old stone bridge (d) a roof frame
5. 5.True or false: an electric tower gets its strength from triangles. (a) True (b) False
6. 6.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we change it (c) we measure it
7. 7.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a magnet (c) turmeric powder (d) two books
8. 8.True or false: a balloon is needed for the paper bridge. (a) True (b) False
9. 9.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a hollow bird bone (c) an eggshell (d) a round pillar
10. 10.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) a battery cell (d) a ruler
11. 11.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
12. 12.⚖️ 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
13. 13.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) one flat sheet (d) rolled paper tubes
14. 14.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
15. 15.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) rolled paper tubes (c) one flat sheet (d) a zigzag-folded sheet
16. 16.True or false: one flat sheet makes a weak bridge. (a) True (b) False
17. 17.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
18. 18.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a wet flat sheet (c) rolled paper tubes (d) paper with folded edges
19. 19.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the kind of paper (c) coins it holds
20. 20.⚖️ 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
21. 21.True or false: a round pillar gets its strength from a tube shape. (a) False (b) True
22. 22.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) more coins (c) fewer coins (d) the same coins
23. 23.🏗️ Where does a roof frame get its strength from? (a) triangles (b) tubes (c) arches and domes
24. 24.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
25. 25.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the shape of the paper (b) the gap between books (c) coins it holds (d) the kind of coins
26. 26.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the square (c) the star (d) the triangle
27. 27.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) high and wobbly (c) low and steady (d) on top of a pet
28. 28.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the kind of coins (c) the kind of paper (d) the gap between books
29. 29.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) yeast (c) a balloon (d) sheets of paper
30. 30.True or false: yeast is needed for the paper bridge. (a) False (b) True
31. 31.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
32. 32.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is made of steel (c) its curved arch shape (d) it is magnetic
33. 33.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it sags and falls (c) it floats up (d) it turns to card
34. 34.🔍 Which is the odd one out? (a) a wet flat sheet (b) a U-shaped channel (c) paper with folded edges (d) rolled paper tubes
35. 35.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
36. 36.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) a ruler (d) yeast
37. 37.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a U-shaped channel (c) rolled paper tubes (d) a flat tissue
38. 38.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
39. 39.🏗️ Where does a temple dome get its strength from? (a) triangles (b) tubes (c) arches and domes
40. 40.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we keep it the same (b) we measure it (c) we change it

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