Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 580 · 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? Which of these is the one thing we change? (a) the gap between books (b) the kind of paper (c) the kind of coins (d) the shape of the paper
2. 2.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) more (c) upward (d) less
3. 3.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
4. 4.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we keep it the same (c) we measure it
5. 5.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a zigzag-folded sheet (c) a wet flat sheet (d) paper with folded edges
6. 6.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a wet flat sheet (c) a flat tissue (d) a zigzag-folded sheet
7. 7.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) a wet flat sheet (d) paper with folded edges
8. 8.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) turmeric powder (c) sheets of paper (d) a magnet
9. 9.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) a roof frame (c) a bridge truss (d) a temple dome
10. 10.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) the same number of (d) more
11. 11.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a mirror (d) sheets of paper
12. 12.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) tubes (c) arches and domes
13. 13.True or false: two books is needed for the paper bridge. (a) True (b) False
14. 14.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) False (b) True
15. 15.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) True (b) False
16. 16.🏗️ Where does an electric tower get its strength from? (a) triangles (b) arches and domes (c) tubes
17. 17.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) coins (c) sheets of paper (d) two books
18. 18.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a bamboo pole (c) an electric tower (d) a bridge truss
19. 19.⚖️ 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
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) yeast (c) sheets of paper (d) two books
21. 21.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a mirror (c) a balloon (d) a ruler
22. 22.True or false: a balloon is not needed for the paper bridge. (a) True (b) False
23. 23.True or false: an old stone bridge gets its strength from a tube shape. (a) False (b) True
24. 24.⚖️ 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
25. 25.🔍 Which is the odd one out? (a) a flat tissue (b) paper with folded edges (c) a wet flat sheet (d) one flat sheet
26. 26.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
27. 27.True or false: an old stone bridge gets its strength from arches or domes. (a) False (b) True
28. 28.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) True (b) False
29. 29.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is very hot (c) it is magnetic (d) its curved arch shape
30. 30.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) one flat sheet (d) paper with folded edges
31. 31.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) a balloon (d) a ruler
32. 32.🔍 Which is the odd one out? (a) paper with folded edges (b) a flat tissue (c) a U-shaped channel (d) a zigzag-folded sheet
33. 33.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) only water (d) fewer coins
34. 34.🔺 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
35. 35.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
36. 36.🏗️ Which of these gets its strength from a tube shape? (a) a hollow bird bone (b) a roof frame (c) an electric tower (d) a bridge truss
37. 37.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
38. 38.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a U-shaped channel (c) one flat sheet (d) rolled paper tubes
39. 39.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
40. 40.🔍 Which is the odd one out? (a) a wet flat sheet (b) a U-shaped channel (c) one flat sheet (d) a torn flat sheet

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