Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 100 · 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 of these is needed for the paper bridge? (a) a ruler (b) yeast (c) a mirror (d) a battery cell
2. 2.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) triangles (c) tubes
3. 3.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) False (b) True
4. 4.🏗️ Where does an electric tower get its strength from? (a) triangles (b) tubes (c) arches and domes
5. 5.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
6. 6.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a mirror (c) two books (d) a balloon
7. 7.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we keep it the same (c) we measure it
8. 8.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) yeast (c) a mirror (d) a battery cell
9. 9.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) rub your eyes (c) wash your hands (d) lick your fingers
10. 10.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) not at all (c) upward (d) more
11. 11.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a ruler (d) a magnet
12. 12.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
13. 13.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
14. 14.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a bridge truss (c) an eggshell (d) an old stone bridge
15. 15.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) triangles (c) arches and domes
16. 16.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) fewer (d) more
17. 17.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a mirror (d) a ruler
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) sheets of paper (c) two books (d) a ruler
20. 20.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
21. 21.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is the one thing we change. (a) False (b) True
22. 22.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
23. 23.True or false: a hollow bird bone gets its strength from triangles. (a) True (b) False
24. 24.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
25. 25.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) the shape of the paper (c) coins it holds (d) the gap between books
26. 26.🧺 Which of these is not needed for the paper bridge? (a) yeast (b) sheets of paper (c) a ruler (d) coins
27. 27.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) the gap between books
28. 28.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
29. 29.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
30. 30.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
31. 31.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) fewer coins (c) more coins (d) only water
32. 32.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) the kind of coins (c) coins it holds (d) the kind of paper
33. 33.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) rolled paper tubes (c) a zigzag-folded sheet (d) a flat tissue
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a battery cell (c) sheets of paper (d) a ruler
35. 35.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
36. 36.True or false: one flat sheet makes a strong bridge. (a) True (b) False
37. 37.🏗️ Which of these gets its strength from arches or domes? (a) a temple dome (b) a round pillar (c) a roof frame (d) an electric tower
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.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) one flat sheet (b) paper with folded edges (c) a zigzag-folded sheet (d) rolled paper tubes

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