Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 683 · 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.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
2. 2.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
3. 3.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is the one thing we change. (a) True (b) False
4. 4.🔍 Which is the odd one out? (a) rolled paper tubes (b) a U-shaped channel (c) a torn flat sheet (d) a zigzag-folded sheet
5. 5.True or false: a round pillar gets its strength from arches or domes. (a) True (b) False
6. 6.True or false: a balloon is needed for the paper bridge. (a) True (b) False
7. 7.True or false: a balloon is not needed for the paper bridge. (a) True (b) False
8. 8.⚖️ 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 shape of the paper (d) the gap between books
9. 9.🔍 Which is the odd one out? (a) one flat sheet (b) paper with folded edges (c) a torn flat sheet (d) a flat tissue
10. 10.⚖️ 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
11. 11.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a magnet (d) a ruler
13. 13.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds add glue (c) folds make it wet (d) folds make it stiffer
14. 14.⚖️ 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
15. 15.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
16. 16.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) high and wobbly (d) low and steady
17. 17.True or false: a mirror is needed for the paper bridge. (a) False (b) True
18. 18.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a wet flat sheet (c) a zigzag-folded sheet (d) rolled paper tubes
19. 19.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) fewer coins (c) only water (d) the same coins
20. 20.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a battery cell (c) two books (d) a ruler
22. 22.True or false: an eggshell gets its strength from triangles. (a) False (b) True
23. 23.True or false: a flat tissue makes a weak bridge. (a) True (b) False
24. 24.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
25. 25.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) triangles (c) tubes
26. 26.True or false: one flat sheet makes a weak bridge. (a) True (b) False
27. 27.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a battery cell (c) coins (d) yeast
28. 28.True or false: two books is needed for the paper bridge. (a) False (b) True
29. 29.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a hollow bird bone (c) an eggshell (d) an old stone bridge
30. 30.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) coins (d) a mirror
31. 31.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) more (c) not at all (d) less
32. 32.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) tubes (c) triangles
33. 33.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the triangle (c) the heart shape (d) the square
34. 34.🥚 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
35. 35.True or false: a round pillar gets its strength from a tube shape. (a) False (b) True
36. 36.True or false: an eggshell gets its strength from a tube shape. (a) True (b) False
37. 37.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a ruler (d) yeast
38. 38.True or false: one flat sheet makes a strong bridge. (a) True (b) False
39. 39.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) coins it holds (c) the kind of coins (d) where coins are placed
40. 40.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) tubes (c) arches and domes

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