Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 263 · 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.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
2. 2.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
3. 3.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it turns to card (c) it floats up (d) it sags and falls
4. 4.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) wash your hands (d) lick your fingers
5. 5.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we measure it (c) we keep it the same
6. 6.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
7. 7.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
8. 8.🧺 Which of these is needed for the paper bridge? (a) a ruler (b) a magnet (c) a mirror (d) a battery cell
9. 9.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) low and steady (c) on top of a pet (d) on a stool edge
10. 10.🔺 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 triangle (d) the heart shape
11. 11.🔍 Which is the odd one out? (a) rolled paper tubes (b) a wet flat sheet (c) a U-shaped channel (d) a zigzag-folded sheet
12. 12.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) an eggshell (c) a bridge truss (d) a roof frame
13. 13.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) a U-shaped channel (d) a flat tissue
14. 14.🏗️ Which of these gets its strength from arches or domes? (a) an old stone bridge (b) a hollow bird bone (c) a bridge truss (d) a round pillar
15. 15.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) upward (c) not at all (d) more
16. 16.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
17. 17.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
18. 18.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) a zigzag-folded sheet (c) rolled paper tubes (d) paper with folded edges
19. 19.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) an electric tower (c) an eggshell (d) a round pillar
20. 20.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) sheets of paper (c) coins (d) a ruler
22. 22.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) where coins are placed (b) coins it holds (c) the shape of the paper
23. 23.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
24. 24.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is very hot (c) its curved arch shape (d) it is magnetic
25. 25.True or false: a zigzag-folded sheet makes a strong bridge. (a) True (b) False
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) yeast (c) coins (d) sheets of paper
27. 27.True or false: a flat tissue makes a weak bridge. (a) True (b) False
28. 28.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
29. 29.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) a hollow bird bone (c) a bridge truss (d) an old stone bridge
30. 30.🔍 Which is the odd one out? (a) a U-shaped channel (b) a torn flat sheet (c) one flat sheet (d) a flat tissue
31. 31.True or false: a hollow bird bone gets its strength from triangles. (a) False (b) True
32. 32.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a flat tissue (c) rolled paper tubes (d) a zigzag-folded sheet
33. 33.True or false: a mirror is not needed for the paper bridge. (a) True (b) False
34. 34.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) a flat tissue (b) a wet flat sheet (c) a torn flat sheet (d) rolled paper tubes
36. 36.True or false: turmeric powder is not needed for the paper bridge. (a) True (b) False
37. 37.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) turmeric powder (c) sheets of paper (d) yeast
38. 38.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) a battery cell (d) a ruler
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) True (b) False
40. 40.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed

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