Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 600 · 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.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
3. 3.🏗️ Where does an old stone bridge get its strength from? (a) arches and domes (b) tubes (c) triangles
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) turmeric powder (c) a ruler (d) two books
5. 5.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) a ruler (d) a balloon
6. 6.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) more coins (c) fewer coins (d) the same coins
7. 7.🧺 Which of these is needed for the paper bridge? (a) coins (b) a battery cell (c) turmeric powder (d) a magnet
8. 8.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) sheets of paper (c) a magnet (d) a balloon
9. 9.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) True (b) False
10. 10.🏗️ Where does an eggshell get its strength from? (a) triangles (b) tubes (c) arches and domes
11. 11.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) a temple dome (c) a bridge truss (d) a hollow bird bone
12. 12.True or false: a mirror is not needed for the paper bridge. (a) True (b) False
13. 13.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) coins it holds (c) the gap between books (d) the shape of the paper
14. 14.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) the same number of (d) more
15. 15.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we keep it the same (b) we change it (c) we measure it
16. 16.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
17. 17.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a wet flat sheet (c) paper with folded edges (d) a U-shaped channel
18. 18.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
19. 19.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) a ruler (c) two books (d) coins
21. 21.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the kind of coins (c) the shape of the paper (d) the kind of paper
22. 22.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
23. 23.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
24. 24.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) two books (c) coins (d) a ruler
25. 25.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we keep it the same (c) we measure it
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) sheets of paper (d) a mirror
27. 27.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) a zigzag-folded sheet (d) a torn flat sheet
28. 28.⚖️ 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
29. 29.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) rub your eyes (c) lick your fingers (d) wash your hands
30. 30.🔍 Which is the odd one out? (a) rolled paper tubes (b) paper with folded edges (c) one flat sheet (d) a U-shaped channel
31. 31.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the square (c) the heart shape (d) the triangle
32. 32.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
33. 33.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) a ruler (d) yeast
34. 34.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
35. 35.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
36. 36.True or false: a flat tissue makes a weak bridge. (a) True (b) False
37. 37.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) triangles (c) tubes
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a ruler (d) a balloon
39. 39.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) more (c) upward (d) less
40. 40.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds make it stiffer (c) folds are magnetic (d) folds add glue

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