Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 985 · 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.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it sags and falls (c) it gets stronger (d) it floats up
2. 2.True or false: an electric tower gets its strength from triangles. (a) False (b) True
3. 3.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the triangle (c) the star (d) the square
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a magnet (c) a ruler (d) coins
5. 5.⚖️ 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 kind of paper (c) the shape of the paper (d) the gap between books
6. 6.True or false: an eggshell gets its strength from arches or domes. (a) True (b) False
7. 7.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we measure it (c) we keep it the same
8. 8.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) rolled paper tubes (c) a torn flat sheet (d) a U-shaped channel
9. 9.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) fewer coins (d) more coins
10. 10.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) triangles (c) tubes
11. 11.⚖️ 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 measure it (c) we change it
12. 12.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) upward (c) less (d) not at all
13. 13.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) the same number of (c) fewer (d) more
14. 14.True or false: a hollow bird bone gets its strength from a tube shape. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) paper with folded edges (b) a U-shaped channel (c) rolled paper tubes (d) one flat sheet
16. 16.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
17. 17.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
18. 18.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) where coins are placed (c) the shape of the paper
19. 19.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) arches and domes (c) tubes
20. 20.🔍 Which is the odd one out? (a) a wet flat sheet (b) one flat sheet (c) a torn flat sheet (d) a zigzag-folded sheet
21. 21.True or false: a roof frame gets its strength from arches or domes. (a) False (b) True
22. 22.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) coins (d) a battery cell
23. 23.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
24. 24.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
25. 25.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
26. 26.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on top of a pet (c) high and wobbly (d) on a stool edge
27. 27.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) triangles (c) tubes
28. 28.True or false: one flat sheet makes a strong bridge. (a) False (b) True
29. 29.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a balloon (c) two books (d) a battery cell
30. 30.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds are magnetic (c) folds make it wet (d) folds add glue
31. 31.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a balloon (c) sheets of paper (d) a ruler
32. 32.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) the kind of coins (c) the gap between books (d) coins it holds
33. 33.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) turmeric powder (d) two books
34. 34.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
35. 35.🔍 Which is the odd one out? (a) a torn flat sheet (b) a wet flat sheet (c) one flat sheet (d) rolled paper tubes
36. 36.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a mirror (c) a battery cell (d) sheets of paper
37. 37.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) wash your hands (d) skip washing
38. 38.True or false: a roof frame gets its strength from triangles. (a) True (b) False
39. 39.🧺 Which of these is not needed for the paper bridge? (a) coins (b) yeast (c) two books (d) a ruler
40. 40.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a torn flat sheet (c) one flat sheet (d) paper with folded edges

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