Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 946 · 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 gets stronger (b) it sags and falls (c) it turns to card (d) it floats up
2. 2.⚖️ 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
3. 3.🔺 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
4. 4.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) not at all (c) more (d) upward
5. 5.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) more coins (c) the same coins (d) fewer coins
6. 6.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) False (b) True
7. 7.True or false: coins is not needed for the paper bridge. (a) True (b) False
8. 8.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
9. 9.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we measure it (c) we change it
10. 10.🏗️ Which of these gets its strength from a tube shape? (a) a round pillar (b) a bridge truss (c) an old stone bridge (d) a roof frame
11. 11.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
12. 12.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a ruler (c) a magnet (d) two books
13. 13.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) paper with folded edges (c) one flat sheet (d) a zigzag-folded sheet
14. 14.🧺 Which of these is not needed for the paper bridge? (a) coins (b) two books (c) sheets of paper (d) a balloon
15. 15.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) rolled paper tubes (b) a zigzag-folded sheet (c) paper with folded edges (d) a flat tissue
17. 17.True or false: one flat sheet makes a strong bridge. (a) False (b) True
18. 18.True or false: a balloon is needed for the paper bridge. (a) False (b) True
19. 19.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
20. 20.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) its curved arch shape (c) it is made of steel (d) it is very hot
21. 21.🛟 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
22. 22.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
23. 23.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) a balloon (d) sheets of paper
24. 24.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) the gap between books
25. 25.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) high and wobbly (c) low and steady (d) on a stool edge
26. 26.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
27. 27.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
28. 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) turmeric powder (d) a ruler
29. 29.🌉 Which of these makes a strong bridge? (a) paper with folded edges (b) one flat sheet (c) a wet flat sheet (d) a flat tissue
30. 30.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
31. 31.⚖️ 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
32. 32.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
33. 33.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) an old stone bridge (c) a bamboo pole (d) a bridge truss
34. 34.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we change it (c) we keep it the same
35. 35.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a mirror (c) sheets of paper (d) turmeric powder
36. 36.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) arches and domes (c) triangles
37. 37.True or false: paper with folded edges makes a strong bridge. (a) True (b) False
38. 38.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds add glue (c) folds make it stiffer (d) folds make it wet
39. 39.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
40. 40.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) True (b) False

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