Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 727 · 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.🔍 Which is the odd one out? (a) rolled paper tubes (b) a U-shaped channel (c) a zigzag-folded sheet (d) a wet flat sheet
2. 2.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) not at all (c) less (d) upward
3. 3.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we keep it the same (c) we change it
4. 4.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a mirror (c) yeast (d) coins
5. 5.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) paper with folded edges (d) one flat sheet
6. 6.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a temple dome (c) an electric tower (d) a bamboo pole
7. 7.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) two books (c) coins (d) sheets of paper
8. 8.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) True (b) False
9. 9.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) coins (c) two books (d) a ruler
10. 10.🔍 Which is the odd one out? (a) paper with folded edges (b) a U-shaped channel (c) rolled paper tubes (d) a flat tissue
11. 11.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a ruler (d) a mirror
12. 12.🔍 Which is the odd one out? (a) a torn flat sheet (b) a wet flat sheet (c) a flat tissue (d) paper with folded edges
13. 13.True or false: a bamboo pole gets its strength from arches or domes. (a) False (b) True
14. 14.True or false: an old stone bridge gets its strength from a tube shape. (a) True (b) False
15. 15.🌉 Which of these makes a strong bridge? (a) paper with folded edges (b) a flat tissue (c) a wet flat sheet (d) a torn flat sheet
16. 16.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) coins it holds (c) the shape of the paper (d) the kind of paper
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) True (b) False
18. 18.⚖️ 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
19. 19.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we measure it (c) we keep it the same
20. 20.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) triangles (c) arches and domes
21. 21.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
22. 22.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
23. 23.True or false: yeast is needed for the paper bridge. (a) False (b) True
24. 24.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) an old stone bridge (c) a bridge truss (d) a hollow bird bone
25. 25.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) wash your hands (c) rub your eyes (d) skip washing
26. 26.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the gap between books (c) coins it holds
27. 27.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a bamboo pole (c) a temple dome (d) a bridge truss
28. 28.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) a torn flat sheet (b) a zigzag-folded sheet (c) rolled paper tubes (d) paper with folded edges
30. 30.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) a wet flat sheet (b) rolled paper tubes (c) one flat sheet (d) a torn flat sheet
32. 32.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) its curved arch shape (c) it is very hot (d) it is made of steel
33. 33.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) the same number of (c) zero (d) more
34. 34.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the star (c) the heart shape (d) the triangle
35. 35.🔍 Which is the odd one out? (a) a torn flat sheet (b) a wet flat sheet (c) a U-shaped channel (d) a flat tissue
36. 36.🏗️ Where does a temple dome get its strength from? (a) tubes (b) triangles (c) arches and domes
37. 37.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
38. 38.True or false: one flat sheet makes a weak bridge. (a) False (b) True
39. 39.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
40. 40.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True

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