Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 267 · 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 of these makes a strong bridge? (a) a torn flat sheet (b) one flat sheet (c) a wet flat sheet (d) a zigzag-folded sheet
2. 2.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a balloon (c) sheets of paper (d) a magnet
3. 3.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on top of a pet (c) high and wobbly (d) on a stool edge
4. 4.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a torn flat sheet (c) paper with folded edges (d) a flat tissue
5. 5.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
6. 6.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
7. 7.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the square (c) the star (d) the triangle
8. 8.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it turns to card (c) it sags and falls (d) it gets stronger
9. 9.🔍 Which is the odd one out? (a) rolled paper tubes (b) a U-shaped channel (c) a zigzag-folded sheet (d) a flat tissue
10. 10.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it wet (c) folds are magnetic (d) folds make it stiffer
11. 11.True or false: coins is not needed for the paper bridge. (a) True (b) False
12. 12.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) the same number of (c) fewer (d) more
13. 13.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
14. 14.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a torn flat sheet (c) paper with folded edges (d) rolled paper tubes
15. 15.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) a battery cell (d) sheets of paper
16. 16.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) the kind of coins (c) the shape of the paper (d) coins it holds
17. 17.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
18. 18.True or false: turmeric powder is not needed for the paper bridge. (a) True (b) False
19. 19.🏗️ Which of these gets its strength from arches or domes? (a) an old stone bridge (b) a bridge truss (c) an electric tower (d) a bamboo pole
20. 20.True or false: a roof frame gets its strength from triangles. (a) True (b) False
21. 21.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we keep it the same (c) we change it
22. 22.True or false: a hollow bird bone gets its strength from triangles. (a) True (b) False
23. 23.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we measure it (c) we keep it the same
24. 24.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) only water (c) the same coins (d) more coins
25. 25.🧺 Which of these is not needed for the paper bridge? (a) a mirror (b) sheets of paper (c) two books (d) a ruler
26. 26.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (a) True (b) False
27. 27.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
28. 28.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) two books (d) a balloon
29. 29.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) arches and domes (c) tubes
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) turmeric powder (d) sheets of paper
31. 31.True or false: a battery cell is needed for the paper bridge. (a) False (b) True
32. 32.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a hollow bird bone (c) a temple dome (d) a bridge truss
33. 33.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) False (b) True
34. 34.True or false: a temple dome gets its strength from arches or domes. (a) False (b) True
35. 35.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
36. 36.🛟 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
37. 37.⚖️ 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
38. 38.True or false: coins is needed for the paper bridge. (a) False (b) True
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a magnet (c) two books (d) sheets of paper
40. 40.True or false: a balloon is not needed for the paper bridge. (a) False (b) True

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