Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 837 · 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 shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the square (c) the heart shape (d) the star
2. 2.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
3. 3.🏗️ Where does a roof frame get its strength from? (a) triangles (b) tubes (c) arches and domes
4. 4.True or false: a flat tissue makes a weak bridge. (a) True (b) False
5. 5.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) more (d) fewer
6. 6.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) paper with folded edges (c) a U-shaped channel (d) a zigzag-folded sheet
7. 7.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) coins it holds (c) where coins are placed (d) the kind of coins
8. 8.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) two books (c) coins (d) turmeric powder
9. 9.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) low and steady (d) high and wobbly
10. 10.True or false: a hollow bird bone gets its strength from triangles. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) rolled paper tubes (b) a zigzag-folded sheet (c) a U-shaped channel (d) a wet flat sheet
12. 12.🥚 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) it is very hot (d) its curved arch shape
13. 13.True or false: an electric tower gets its strength from triangles. (a) True (b) False
14. 14.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
15. 15.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
16. 16.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
17. 17.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) a bridge truss (c) a round pillar (d) an old stone bridge
18. 18.⚖️ 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 change it (c) we measure it
19. 19.True or false: yeast is needed for the paper bridge. (a) True (b) False
20. 20.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) coins (c) turmeric powder (d) a magnet
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a ruler (d) turmeric powder
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a battery cell (d) a ruler
23. 23.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
24. 24.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) skip washing (d) wash your hands
25. 25.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) rolled paper tubes (c) a flat tissue (d) a wet flat sheet
26. 26.True or false: two books is not needed for the paper bridge. (a) False (b) True
27. 27.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
28. 28.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) rolled paper tubes (d) a torn flat sheet
29. 29.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
30. 30.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) less (c) more (d) not at all
31. 31.True or false: a magnet is needed for the paper bridge. (a) False (b) True
32. 32.🏗️ Where does a round pillar get its strength from? (a) triangles (b) arches and domes (c) tubes
33. 33.🔍 Which is the odd one out? (a) a torn flat sheet (b) one flat sheet (c) a wet flat sheet (d) a zigzag-folded sheet
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) a balloon (d) coins
35. 35.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) arches and domes (c) triangles
36. 36.⚖️ 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
37. 37.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a mirror (c) coins (d) sheets of paper
38. 38.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) a temple dome (c) an eggshell (d) a hollow bird bone
39. 39.True or false: turmeric powder is not needed for the paper bridge. (a) True (b) False
40. 40.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed

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