Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 615 · 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.🛟 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
2. 2.True or false: two books is needed for the paper bridge. (a) False (b) True
3. 3.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it stiffer (c) folds are magnetic (d) folds make it wet
4. 4.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a hollow bird bone (c) a round pillar (d) an old stone bridge
5. 5.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a zigzag-folded sheet (c) a torn flat sheet (d) paper with folded edges
6. 6.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) an old stone bridge (c) a hollow bird bone (d) an eggshell
7. 7.True or false: a wet flat sheet makes a weak bridge. (a) True (b) False
8. 8.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) fewer (d) more
9. 9.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
10. 10.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
11. 11.True or false: turmeric powder is not needed for the paper bridge. (a) True (b) False
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) yeast (c) sheets of paper (d) a ruler
13. 13.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) rolled paper tubes (c) a zigzag-folded sheet (d) one flat sheet
14. 14.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) a torn flat sheet (d) a U-shaped channel
15. 15.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) True (b) False
16. 16.🏗️ Where does a temple dome get its strength from? (a) tubes (b) arches and domes (c) triangles
17. 17.True or false: a magnet is needed for the paper bridge. (a) False (b) True
18. 18.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a U-shaped channel (c) a torn flat sheet (d) a flat tissue
19. 19.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
20. 20.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
21. 21.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) its curved arch shape (c) it is magnetic (d) it is very hot
22. 22.True or false: an eggshell gets its strength from arches or domes. (a) False (b) True
23. 23.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
24. 24.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
25. 25.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) more (c) less (d) upward
26. 26.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) True (b) False
28. 28.⚖️ 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 kind of coins (c) the shape of the paper (d) where coins are placed
29. 29.True or false: a hollow bird bone gets its strength from triangles. (a) True (b) False
30. 30.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a temple dome (c) a roof frame (d) a hollow bird bone
31. 31.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
32. 32.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) lick your fingers (c) rub your eyes (d) skip washing
33. 33.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) two books (d) a balloon
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) two books (d) a battery cell
35. 35.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) a bamboo pole (c) an eggshell (d) a hollow bird bone
36. 36.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
37. 37.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a battery cell (c) coins (d) yeast
38. 38.🧺 Which of these is needed for the paper bridge? (a) two books (b) a battery cell (c) turmeric powder (d) a balloon
39. 39.🏗️ Which of these gets its strength from a tube shape? (a) a hollow bird bone (b) an electric tower (c) an old stone bridge (d) an eggshell
40. 40.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) tubes (c) triangles

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