Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 595 · 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) paper with folded edges (b) a wet flat sheet (c) a U-shaped channel (d) a zigzag-folded sheet
2. 2.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
3. 3.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) paper with folded edges (d) a torn flat sheet
4. 4.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False
5. 5.True or false: a balloon is needed for the paper bridge. (a) True (b) False
6. 6.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) high and wobbly (c) on a stool edge (d) on top of a pet
7. 7.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we measure it (c) we change it
8. 8.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) triangles (c) arches and domes
9. 9.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) True (b) False
10. 10.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) triangles (c) arches and domes
11. 11.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
12. 12.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) an old stone bridge (c) a roof frame (d) an eggshell
13. 13.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) turmeric powder (c) two books (d) a battery cell
14. 14.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a bridge truss (c) an old stone bridge (d) a bamboo pole
15. 15.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a battery cell (c) two books (d) sheets of paper
16. 16.True or false: a bridge truss gets its strength from a tube shape. (a) True (b) False
17. 17.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a round pillar (c) an electric tower (d) a temple dome
18. 18.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) more (d) fewer
19. 19.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
20. 20.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
21. 21.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
22. 22.True or false: coins is not needed for the paper bridge. (a) False (b) True
23. 23.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) not at all (c) upward (d) less
24. 24.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) the kind of paper
25. 25.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) its curved arch shape (c) it is magnetic (d) it is made of steel
26. 26.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
27. 27.🔍 Which is the odd one out? (a) rolled paper tubes (b) a wet flat sheet (c) a torn flat sheet (d) a flat tissue
28. 28.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds make it stiffer (c) folds are magnetic (d) folds add glue
29. 29.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) a wet flat sheet (b) a torn flat sheet (c) a flat tissue (d) a zigzag-folded sheet
31. 31.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
32. 32.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a wet flat sheet (c) rolled paper tubes (d) a torn flat sheet
33. 33.True or false: a roof frame gets its strength from a tube shape. (a) True (b) False
34. 34.True or false: an electric tower gets its strength from a tube shape. (a) True (b) False
35. 35.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we change it (c) we keep it the same
36. 36.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) where coins are placed (c) the kind of coins (d) the shape of the paper
37. 37.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) a mirror (c) turmeric powder (d) yeast
38. 38.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
39. 39.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we keep it the same (b) we change it (c) we measure it
40. 40.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge

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