Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 484 · 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 of these makes a weak bridge? (a) rolled paper tubes (b) a U-shaped channel (c) a zigzag-folded sheet (d) a flat tissue
2. 2.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) rolled paper tubes (d) a torn flat sheet
3. 3.🌉 Which of these makes a weak bridge? (a) a torn flat sheet (b) rolled paper tubes (c) a U-shaped channel (d) paper with folded edges
4. 4.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) two books (c) a balloon (d) coins
5. 5.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) an old stone bridge (c) a roof frame (d) a bamboo pole
6. 6.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) where coins are placed (c) coins it holds (d) the kind of coins
7. 7.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) an electric tower (c) an old stone bridge (d) a bamboo pole
8. 8.🔍 Which is the odd one out? (a) a U-shaped channel (b) a wet flat sheet (c) a flat tissue (d) one flat sheet
9. 9.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) a ruler (d) a battery cell
10. 10.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) paper with folded edges (c) a U-shaped channel (d) a wet flat sheet
11. 11.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) high and wobbly (c) on top of a pet (d) low and steady
12. 12.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds add glue (c) folds are magnetic (d) folds make it stiffer
13. 13.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
14. 14.🏗️ Which of these gets its strength from triangles? (a) a roof frame (b) an old stone bridge (c) a bamboo pole (d) an eggshell
15. 15.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is magnetic (c) its curved arch shape (d) it is very hot
16. 16.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) a bridge truss (c) a bamboo pole (d) an eggshell
17. 17.True or false: yeast is needed for the paper bridge. (a) True (b) False
18. 18.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) an eggshell (c) a round pillar (d) an electric tower
19. 19.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) arches and domes (c) triangles
20. 20.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
21. 21.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) False (b) True
22. 22.True or false: one flat sheet makes a strong bridge. (a) False (b) True
23. 23.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
24. 24.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) zero (c) the same number of (d) fewer
25. 25.True or false: two books is not needed for the paper bridge. (a) True (b) False
26. 26.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) a U-shaped channel (d) one flat sheet
27. 27.True or false: a balloon is needed for the paper bridge. (a) True (b) False
28. 28.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) False (b) True
29. 29.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we change it (c) we keep it the same
30. 30.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) less (c) upward (d) not at all
31. 31.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) one flat sheet (c) a zigzag-folded sheet (d) paper with folded edges
32. 32.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) triangles (c) arches and domes
33. 33.True or false: a bridge truss gets its strength from a tube shape. (a) False (b) True
34. 34.🌉 Does a torn flat 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? True or false: the shape of the paper is what we measure. (a) True (b) False
36. 36.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
37. 37.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we keep it the same (b) we change it (c) we measure it
38. 38.True or false: coins is not needed for the paper bridge. (a) False (b) True
39. 39.🧺 Which of these is needed for the paper bridge? (a) a ruler (b) turmeric powder (c) a mirror (d) a magnet
40. 40.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we measure it (c) we keep it the same

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