Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 141 · 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) one flat sheet (b) a torn flat sheet (c) a wet flat sheet (d) rolled paper tubes
2. 2.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it gets stronger (c) it sags and falls (d) it floats up
3. 3.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) sheets of paper (d) yeast
4. 4.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) more (d) the same number of
5. 5.🏗️ Which of these gets its strength from a tube shape? (a) a round pillar (b) a bridge truss (c) a roof frame (d) an eggshell
6. 6.🔍 Which is the odd one out? (a) a flat tissue (b) a zigzag-folded sheet (c) a wet flat sheet (d) one flat sheet
7. 7.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the gap between books (b) the shape of the paper (c) coins it holds (d) where coins are placed
8. 8.🏗️ Where does a roof frame get its strength from? (a) triangles (b) arches and domes (c) tubes
9. 9.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we change it (c) we keep it the same
10. 10.True or false: a magnet is needed for the paper bridge. (a) True (b) False
11. 11.🛟 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
12. 12.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a zigzag-folded sheet (c) a torn flat sheet (d) a U-shaped channel
13. 13.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) sheets of paper (d) a battery cell
14. 14.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
15. 15.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
16. 16.True or false: a U-shaped channel makes a strong bridge. (a) True (b) False
17. 17.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
18. 18.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
19. 19.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
20. 20.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) upward (c) not at all (d) less
21. 21.True or false: a round pillar gets its strength from a tube shape. (a) False (b) True
22. 22.🥚 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
23. 23.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a round pillar (c) a bridge truss (d) a bamboo pole
24. 24.🏗️ Where does a round pillar get its strength from? (a) triangles (b) arches and domes (c) tubes
25. 25.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a bamboo pole (c) a roof frame (d) an old stone bridge
26. 26.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) a flat tissue (b) paper with folded edges (c) a U-shaped channel (d) a zigzag-folded sheet
28. 28.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
29. 29.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a U-shaped channel (c) paper with folded edges (d) one flat sheet
30. 30.True or false: one flat sheet makes a weak bridge. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) one flat sheet (b) rolled paper tubes (c) a zigzag-folded sheet (d) a U-shaped channel
32. 32.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) turmeric powder (c) two books (d) a magnet
33. 33.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) a U-shaped channel (d) a torn flat sheet
34. 34.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
35. 35.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
36. 36.🧺 Which of these is not needed for the paper bridge? (a) yeast (b) two books (c) sheets of paper (d) coins
37. 37.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) sheets of paper (d) a mirror
38. 38.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
39. 39.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a zigzag-folded sheet (c) a wet flat sheet (d) a torn flat sheet
40. 40.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) coins (c) a balloon (d) a mirror

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