Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 949 · 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? True or false: the shape of the paper is kept the same. (a) True (b) False
2. 2.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) a mirror (d) two books
3. 3.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True
4. 4.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) an electric tower (c) a round pillar (d) an eggshell
5. 5.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) sheets of paper (c) two books (d) coins
7. 7.True or false: a hollow bird bone gets its strength from arches or domes. (a) False (b) True
8. 8.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
9. 9.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) False (b) True
10. 10.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) fewer coins (c) more coins (d) only water
11. 11.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) upward (c) more (d) not at all
12. 12.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
13. 13.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) a U-shaped channel (b) a zigzag-folded sheet (c) paper with folded edges (d) a torn flat sheet
15. 15.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a ruler (c) a battery cell (d) a magnet
16. 16.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
17. 17.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
18. 18.🌉 Which of these makes a weak bridge? (a) a torn flat sheet (b) rolled paper tubes (c) paper with folded edges (d) a U-shaped channel
19. 19.⚖️ 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
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) two books (c) coins (d) sheets of paper
21. 21.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
22. 22.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) arches and domes (c) triangles
23. 23.True or false: a magnet is needed for the paper bridge. (a) True (b) False
24. 24.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
25. 25.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) True (b) False
26. 26.🌉 Which of these makes a strong bridge? (a) paper with folded edges (b) a torn flat sheet (c) a wet flat sheet (d) one flat sheet
27. 27.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) a roof frame (c) an electric tower (d) an old stone bridge
28. 28.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we keep it the same (c) we change it
29. 29.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a balloon (c) sheets of paper (d) a battery cell
30. 30.🔍 Which is the odd one out? (a) a torn flat sheet (b) rolled paper tubes (c) a flat tissue (d) one flat sheet
31. 31.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a U-shaped channel (c) rolled paper tubes (d) one flat sheet
32. 32.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it stiffer (c) folds make it wet (d) folds are magnetic
33. 33.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) a battery cell (d) a ruler
34. 34.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is magnetic (c) its curved arch shape (d) it is very hot
35. 35.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a ruler (c) yeast (d) two books
36. 36.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) on top of a pet (d) low and steady
37. 37.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
38. 38.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) an eggshell (c) a bamboo pole (d) a bridge truss
39. 39.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
40. 40.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the star (c) the heart shape (d) the square

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