Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 436 · 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 flat tissue (c) paper with folded edges (d) a torn flat sheet
2. 2.🌉 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
3. 3.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) coins it holds (c) where coins are placed (d) the shape of the paper
4. 4.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
5. 5.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) triangles (c) tubes
6. 6.🛟 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
7. 7.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) triangles (c) arches and domes
8. 8.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
9. 9.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) coins (d) a mirror
10. 10.🔍 Which is the odd one out? (a) a flat tissue (b) a zigzag-folded sheet (c) a wet flat sheet (d) one flat sheet
11. 11.🧺 Which of these is needed for the paper bridge? (a) two books (b) a mirror (c) turmeric powder (d) a battery cell
12. 12.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we change it (c) we keep it the same
13. 13.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
14. 14.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
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.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) True (b) False
17. 17.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) fewer (c) zero (d) more
18. 18.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
19. 19.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) more coins (c) the same coins (d) fewer coins
20. 20.⚖️ 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 keep it the same (c) we change it
21. 21.True or false: coins is needed for the paper bridge. (a) False (b) True
22. 22.True or false: coins is not needed for the paper bridge. (a) True (b) False
23. 23.🏗️ Which of these gets its strength from a tube shape? (a) a hollow bird bone (b) an old stone bridge (c) a bridge truss (d) a temple dome
24. 24.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a balloon (d) a ruler
25. 25.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a mirror (c) a ruler (d) turmeric powder
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) turmeric powder (d) a ruler
27. 27.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
28. 28.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
29. 29.True or false: a flat tissue makes a weak bridge. (a) True (b) False
30. 30.🏗️ Which of these gets its strength from triangles? (a) a roof frame (b) an old stone bridge (c) a temple dome (d) an eggshell
31. 31.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) False (b) True
32. 32.True or false: one flat sheet makes a strong bridge. (a) True (b) False
33. 33.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) a battery cell (d) two books
34. 34.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
35. 35.True or false: a ruler is needed for the paper bridge. (a) True (b) False
36. 36.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it sags and falls (c) it gets stronger (d) it floats up
37. 37.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) two books (c) a battery cell (d) coins
38. 38.True or false: an eggshell gets its strength from arches or domes. (a) False (b) True
39. 39.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
40. 40.True or false: a roof frame gets its strength from arches or domes. (a) False (b) True

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