Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 67 · 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? Which of these is the one thing we change? (a) the shape of the paper (b) where coins are placed (c) the kind of paper (d) the gap between books
2. 2.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a temple dome (c) a roof frame (d) a hollow bird bone
3. 3.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) False (b) True
4. 4.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) False (b) True
5. 5.🛟 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
6. 6.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we measure it (b) we change it (c) we keep it the same
7. 7.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) zero (c) the same number of (d) fewer
8. 8.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) a U-shaped channel (c) a zigzag-folded sheet (d) rolled paper tubes
9. 9.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) not at all (c) less (d) upward
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a battery cell (c) coins (d) sheets of paper
11. 11.🏗️ Where does a round pillar get its strength from? (a) triangles (b) tubes (c) arches and domes
12. 12.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) rolled paper tubes (c) a zigzag-folded sheet (d) a torn flat sheet
13. 13.🔍 Which is the odd one out? (a) paper with folded edges (b) a U-shaped channel (c) rolled paper tubes (d) a wet flat sheet
14. 14.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
15. 15.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) the shape of the paper (c) coins it holds (d) the kind of coins
16. 16.True or false: a roof frame gets its strength from triangles. (a) True (b) False
17. 17.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) a zigzag-folded sheet (c) a U-shaped channel (d) rolled paper tubes
18. 18.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
19. 19.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a magnet (c) yeast (d) a ruler
20. 20.True or false: a roof frame gets its strength from a tube shape. (a) False (b) True
21. 21.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
22. 22.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) rub your eyes (c) wash your hands (d) lick your fingers
23. 23.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
24. 24.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
25. 25.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) tubes (c) arches and domes
26. 26.True or false: an eggshell gets its strength from a tube shape. (a) True (b) False
27. 27.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) the kind of coins
28. 28.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) where coins are placed (c) coins it holds
29. 29.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) turmeric powder (c) a magnet (d) sheets of paper
30. 30.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it turns to card (c) it floats up (d) it sags and falls
31. 31.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
32. 32.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
33. 33.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we keep it the same (c) we measure it
34. 34.True or false: a wet flat sheet makes a weak bridge. (a) True (b) False
35. 35.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) a magnet (d) two books
36. 36.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
37. 37.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
38. 38.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
39. 39.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the heart shape (c) the triangle (d) the square
40. 40.True or false: an electric tower gets its strength from a tube shape. (a) True (b) False

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