Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 852 · 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.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) the same number of (c) more (d) fewer
2. 2.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a bamboo pole (c) a bridge truss (d) a hollow bird bone
3. 3.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
4. 4.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
5. 5.🏗️ Where does an old stone bridge get its strength from? (a) arches and domes (b) tubes (c) triangles
6. 6.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) where coins are placed (b) the shape of the paper (c) coins it holds
7. 7.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) True (b) False
8. 8.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the triangle (c) the heart shape (d) the star
9. 9.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) arches and domes (c) tubes
10. 10.🔍 Which is the odd one out? (a) one flat sheet (b) a wet flat sheet (c) rolled paper tubes (d) a flat tissue
11. 11.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
12. 12.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) wash your hands (d) lick your fingers
13. 13.True or false: a bridge truss gets its strength from a tube shape. (a) False (b) True
14. 14.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
15. 15.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it gets stronger (c) it turns to card (d) it sags and falls
16. 16.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a bamboo pole (c) a roof frame (d) an old stone bridge
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
18. 18.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) the shape of the paper (c) where coins are placed (d) the gap between books
19. 19.True or false: a flat tissue makes a strong bridge. (a) False (b) True
20. 20.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) low and steady (c) high and wobbly (d) on a stool edge
21. 21.⚖️ 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 measure it (c) we change it
22. 22.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
23. 23.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) one flat sheet (c) a torn flat sheet (d) a U-shaped channel
24. 24.True or false: a mirror is needed for the paper bridge. (a) False (b) True
25. 25.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) False (b) True
26. 26.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
27. 27.True or false: a magnet is needed for the paper bridge. (a) True (b) False
28. 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) coins (d) a mirror
29. 29.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) sheets of paper (c) a mirror (d) a magnet
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) coins (d) a balloon
31. 31.True or false: an electric tower gets its strength from triangles. (a) False (b) True
32. 32.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
33. 33.🏗️ Which of these gets its strength from arches or domes? (a) an eggshell (b) a hollow bird bone (c) a round pillar (d) a bridge truss
34. 34.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it wet (c) folds add glue (d) folds make it stiffer
35. 35.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) fewer coins (c) only water (d) more coins
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 change it (c) we measure it
37. 37.🏗️ Where does an electric tower get its strength from? (a) tubes (b) triangles (c) arches and domes
38. 38.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
39. 39.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True
40. 40.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we change it (c) we keep it the same

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