Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 166 · 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.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
2. 2.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
3. 3.True or false: a temple dome gets its strength from arches or domes. (a) False (b) True
4. 4.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
5. 5.True or false: an electric tower gets its strength from arches or domes. (a) True (b) False
6. 6.🌉 Which of these makes a strong bridge? (a) a zigzag-folded sheet (b) a flat tissue (c) a torn flat sheet (d) a wet flat sheet
7. 7.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) sheets of paper (d) a balloon
8. 8.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we change it (c) we keep it the same
9. 9.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) more (c) less (d) upward
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) a mirror (d) sheets of paper
11. 11.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) skip washing (c) rub your eyes (d) lick your fingers
12. 12.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) a flat tissue (d) paper with folded edges
13. 13.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a battery cell (c) two books (d) sheets of paper
14. 14.True or false: a bridge truss gets its strength from a tube shape. (a) True (b) False
15. 15.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) triangles (c) tubes
16. 16.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a round pillar (c) a temple dome (d) a roof frame
17. 17.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
18. 18.🧺 Which of these is not needed for the paper bridge? (a) coins (b) two books (c) a balloon (d) sheets of paper
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 measure it (c) we keep it the same
20. 20.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
21. 21.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
22. 22.True or false: a bridge truss gets its strength from arches or domes. (a) False (b) True
23. 23.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
24. 24.🔺 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
25. 25.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a wet flat sheet (c) a zigzag-folded sheet (d) a U-shaped channel
26. 26.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) a bridge truss (c) a hollow bird bone (d) an eggshell
27. 27.True or false: yeast is needed for the paper bridge. (a) True (b) False
28. 28.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
29. 29.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
30. 30.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) a wet flat sheet (b) a flat tissue (c) paper with folded edges (d) a torn flat sheet
32. 32.🔍 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 floats up (d) it turns to card
33. 33.🧺 Which of these is not needed for the paper bridge? (a) coins (b) two books (c) yeast (d) sheets of paper
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) False (b) True
35. 35.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
36. 36.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the shape of the paper (b) where coins are placed (c) coins it holds (d) the kind of paper
37. 37.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
38. 38.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a ruler (c) a balloon (d) a magnet
39. 39.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is magnetic (c) it is very hot (d) it is made of steel
40. 40.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a wet flat sheet (c) rolled paper tubes (d) a flat tissue

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