Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 915 · 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.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
2. 2.⚖️ 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
3. 3.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) sheets of paper (c) coins (d) two books
4. 4.⚖️ 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
5. 5.🔍 Which is the odd one out? (a) rolled paper tubes (b) a flat tissue (c) one flat sheet (d) a wet flat sheet
6. 6.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) paper with folded edges (c) a zigzag-folded sheet (d) a U-shaped channel
7. 7.True or false: one flat sheet makes a strong bridge. (a) True (b) False
8. 8.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
9. 9.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
10. 10.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
11. 11.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) zero (c) the same number of (d) fewer
12. 12.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True
13. 13.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
14. 14.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) only water (d) fewer coins
15. 15.True or false: a battery cell is needed for the paper bridge. (a) True (b) False
16. 16.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) turmeric powder (d) coins
17. 17.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a ruler (d) a battery cell
18. 18.🔍 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
19. 19.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) yeast (c) a battery cell (d) sheets of paper
20. 20.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a hollow bird bone (c) an old stone bridge (d) an electric tower
21. 21.True or false: a flat tissue makes a strong bridge. (a) True (b) False
22. 22.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
23. 23.🏗️ Where does a temple dome get its strength from? (a) triangles (b) arches and domes (c) tubes
24. 24.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
25. 25.True or false: a bridge truss gets its strength from arches or domes. (a) False (b) True
26. 26.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) low and steady (d) high and wobbly
27. 27.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) paper with folded edges (c) rolled paper tubes (d) a flat tissue
28. 28.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is made of steel (c) it is very hot (d) its curved arch shape
29. 29.🏗️ Which of these gets its strength from a tube shape? (a) a round pillar (b) an electric tower (c) an old stone bridge (d) a roof frame
30. 30.True or false: a roof frame gets its strength from a tube shape. (a) False (b) True
31. 31.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) two books (d) a mirror
32. 32.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
33. 33.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
34. 34.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
35. 35.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) coins it holds (c) the gap between books (d) the shape of the paper
36. 36.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) the gap between books
37. 37.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the star (c) the square (d) the triangle
38. 38.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we change it (c) we keep it the same
39. 39.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) an eggshell (c) a temple dome (d) a bridge truss
40. 40.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) coins (d) yeast

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