Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 423 · 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 U-shaped channel makes a weak bridge. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) one flat sheet (b) a U-shaped channel (c) a zigzag-folded sheet (d) rolled paper tubes
3. 3.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
4. 4.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) more (c) less (d) not at all
5. 5.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) more (c) the same number of (d) fewer
6. 6.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) False (b) True
7. 7.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a U-shaped channel (c) rolled paper tubes (d) a wet flat sheet
8. 8.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) its curved arch shape (c) it is magnetic (d) it is very hot
9. 9.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
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.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
12. 12.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a U-shaped channel (c) paper with folded edges (d) one flat sheet
13. 13.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) the shape of the paper (c) the gap between books (d) the kind of coins
14. 14.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) low and steady (d) on top of a pet
15. 15.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we keep it the same (c) we change it
16. 16.True or false: a mirror is needed for the paper bridge. (a) True (b) False
17. 17.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) yeast (c) a battery cell (d) two books
18. 18.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
19. 19.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
20. 20.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) one flat sheet (d) rolled paper tubes
21. 21.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) an electric tower (c) a bamboo pole (d) an old stone bridge
22. 22.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a ruler (c) a balloon (d) a battery cell
23. 23.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
24. 24.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we keep it the same (b) we measure it (c) we change it
25. 25.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
26. 26.🏗️ Which of these gets its strength from a tube shape? (a) a hollow bird bone (b) an old stone bridge (c) a roof frame (d) an electric tower
27. 27.🏗️ Which of these gets its strength from a tube shape? (a) a bamboo pole (b) a bridge truss (c) a temple dome (d) an electric tower
28. 28.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
29. 29.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we change it (c) we keep it the same
30. 30.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) skip washing (c) rub your eyes (d) wash your hands
31. 31.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
32. 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) yeast (d) two books
33. 33.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) the gap between books (c) coins it holds (d) the shape of the paper
34. 34.🏗️ Where does an electric tower get its strength from? (a) tubes (b) triangles (c) arches and domes
35. 35.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we change it (c) we measure it
36. 36.🧺 Which of these is not needed for the paper bridge? (a) a magnet (b) sheets of paper (c) coins (d) two books
37. 37.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
38. 38.True or false: a wet flat sheet makes a weak bridge. (a) True (b) False
39. 39.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the star (c) the square (d) the triangle
40. 40.True or false: a flat tissue makes a strong bridge. (a) True (b) False

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