Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 332 · 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.True or false: a roof frame gets its strength from triangles. (a) True (b) False
2. 2.True or false: an electric tower gets its strength from triangles. (a) False (b) True
3. 3.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds are magnetic (c) folds add glue (d) folds make it stiffer
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a mirror (c) two books (d) sheets of paper
5. 5.True or false: coins is not needed for the paper bridge. (a) False (b) True
6. 6.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) the kind of coins (c) the kind of paper (d) the shape of the paper
7. 7.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
8. 8.True or false: yeast is needed for the paper bridge. (a) True (b) False
9. 9.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
10. 10.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) two books (c) coins (d) a battery cell
11. 11.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) more (c) the same number of (d) fewer
12. 12.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (a) True (b) False
13. 13.True or false: two books is needed for the paper bridge. (a) False (b) True
14. 14.True or false: an eggshell gets its strength from triangles. (a) True (b) False
15. 15.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a ruler (d) a magnet
16. 16.⚖️ 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
17. 17.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
18. 18.🏗️ Where does a roof frame get its strength from? (a) triangles (b) arches and domes (c) tubes
19. 19.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) fewer coins (c) the same coins (d) more coins
20. 20.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) False (b) True
21. 21.True or false: a mirror is needed for the paper bridge. (a) False (b) True
22. 22.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we change it (c) we measure it
23. 23.True or false: rolled paper tubes makes a strong bridge. (a) True (b) False
24. 24.True or false: one flat sheet makes a weak bridge. (a) False (b) True
25. 25.True or false: an electric tower gets its strength from a tube shape. (a) True (b) False
26. 26.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we change it (c) we keep it the same
27. 27.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
28. 28.True or false: a zigzag-folded sheet makes a strong bridge. (a) True (b) False
29. 29.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
30. 30.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) triangles (c) tubes
31. 31.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) False (b) True
32. 32.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) an old stone bridge (c) a temple dome (d) an electric tower
33. 33.🔍 Which is the odd one out? (a) rolled paper tubes (b) paper with folded edges (c) a wet flat sheet (d) a U-shaped channel
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) coins (c) sheets of paper (d) a ruler
35. 35.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) triangles (c) arches and domes
36. 36.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) False (b) True
37. 37.⚖️ 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
38. 38.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) low and steady (d) on top of a pet
39. 39.🏗️ Which of these gets its strength from arches or domes? (a) an old stone bridge (b) a hollow bird bone (c) a round pillar (d) an electric tower
40. 40.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) a U-shaped channel (c) rolled paper tubes (d) paper with folded edges

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