Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 804 · 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.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) upward (c) more (d) not at all
2. 2.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a mirror (c) coins (d) sheets of paper
3. 3.True or false: a roof frame gets its strength from arches or domes. (a) False (b) True
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) turmeric powder (d) two books
5. 5.🔍 Which is the odd one out? (a) a wet flat sheet (b) paper with folded edges (c) a zigzag-folded sheet (d) rolled paper tubes
6. 6.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we measure it (c) we keep it the same
7. 7.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
8. 8.⚖️ 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
9. 9.True or false: a flat tissue makes a strong bridge. (a) True (b) False
10. 10.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) False (b) True
11. 11.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) high and wobbly (c) on a stool edge (d) on top of a pet
12. 12.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) the shape of the paper (c) the kind of coins (d) where coins are placed
13. 13.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a ruler (c) a balloon (d) two books
14. 14.True or false: a U-shaped channel makes a strong bridge. (a) True (b) False
15. 15.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
16. 16.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) more coins (c) the same coins (d) only water
17. 17.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) tubes (c) triangles
18. 18.🔍 Which is the odd one out? (a) one flat sheet (b) a zigzag-folded sheet (c) rolled paper tubes (d) paper with folded edges
19. 19.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) one flat sheet (c) a zigzag-folded sheet (d) rolled paper tubes
20. 20.True or false: a round pillar gets its strength from triangles. (a) True (b) False
21. 21.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
22. 22.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) an electric tower (c) an old stone bridge (d) an eggshell
23. 23.True or false: a mirror is needed for the paper bridge. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) one flat sheet (b) a torn flat sheet (c) paper with folded edges (d) a flat tissue
25. 25.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
26. 26.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) yeast (c) coins (d) a ruler
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) False (b) True
28. 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) a battery cell (d) two books
29. 29.⚖️ 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
30. 30.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) the same number of (c) fewer (d) zero
31. 31.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
32. 32.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds add glue (c) folds are magnetic (d) folds make it wet
33. 33.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a roof frame (c) a temple dome (d) a bamboo pole
34. 34.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) a torn flat sheet (d) a zigzag-folded sheet
35. 35.True or false: coins is not needed for the paper bridge. (a) False (b) True
36. 36.🥚 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
37. 37.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
38. 38.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
39. 39.True or false: a bridge truss gets its strength from arches or domes. (a) False (b) True
40. 40.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) two books (c) a battery cell (d) a balloon

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