Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 827 · 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.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) wash your hands (c) skip washing (d) rub your eyes
2. 2.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
3. 3.⚖️ 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
4. 4.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
5. 5.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) tubes (c) triangles
6. 6.True or false: a wet flat sheet makes a weak bridge. (a) True (b) False
7. 7.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a hollow bird bone (c) an electric tower (d) a roof frame
8. 8.🔍 Which is the odd one out? (a) a torn flat sheet (b) a U-shaped channel (c) one flat sheet (d) a wet flat sheet
9. 9.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) arches and domes (c) triangles
10. 10.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it sags and falls (c) it turns to card (d) it gets stronger
11. 11.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is magnetic (c) it is made of steel (d) its curved arch shape
12. 12.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) triangles (c) arches and domes
13. 13.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) the same number of (c) fewer (d) more
14. 14.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
15. 15.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we measure it (c) we keep it the same
16. 16.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) one flat sheet (c) a zigzag-folded sheet (d) a torn flat sheet
17. 17.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
18. 18.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) low and steady (d) high and wobbly
19. 19.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) a hollow bird bone (c) an eggshell (d) a bamboo pole
20. 20.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
21. 21.🔺 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
22. 22.⚖️ 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
23. 23.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
24. 24.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a ruler (c) a magnet (d) yeast
25. 25.🔍 Which is the odd one out? (a) a U-shaped channel (b) rolled paper tubes (c) one flat sheet (d) paper with folded edges
26. 26.⚖️ 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 measure it (c) we change it
27. 27.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a flat tissue (c) one flat sheet (d) rolled paper tubes
28. 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) turmeric powder (c) coins (d) sheets of paper
29. 29.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it stiffer (c) folds make it wet (d) folds add glue
30. 30.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
31. 31.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) turmeric powder (c) coins (d) a battery cell
32. 32.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the kind of paper (c) where coins are placed (d) the shape of the paper
33. 33.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a battery cell (d) sheets of paper
34. 34.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a bamboo pole (c) an electric tower (d) an old stone bridge
35. 35.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
36. 36.True or false: a magnet is needed for the paper bridge. (a) True (b) False
37. 37.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
38. 38.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we keep it the same (c) we change it
39. 39.True or false: two books is not needed for the paper bridge. (a) False (b) True
40. 40.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge

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