Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 439 · 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 wet flat sheet (b) a torn flat sheet (c) a flat tissue (d) a U-shaped channel
2. 2.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the gap between books (b) coins it holds (c) the shape of the paper
3. 3.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
4. 4.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the heart shape (c) the star (d) the square
5. 5.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a ruler (d) a magnet
6. 6.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is made of steel (c) its curved arch shape (d) it is magnetic
7. 7.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) turmeric powder (c) a ruler (d) two books
8. 8.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) triangles (c) tubes
9. 9.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a balloon (c) coins (d) a ruler
10. 10.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) the shape of the paper (c) the kind of paper (d) coins it holds
11. 11.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
12. 12.True or false: a flat tissue makes a strong bridge. (a) True (b) False
13. 13.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) the kind of coins (c) the shape of the paper (d) coins it holds
14. 14.🔍 Which is the odd one out? (a) rolled paper tubes (b) a U-shaped channel (c) paper with folded edges (d) a flat tissue
15. 15.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) a wet flat sheet (d) rolled paper tubes
16. 16.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) low and steady (c) on top of a pet (d) high and wobbly
17. 17.⚖️ 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
18. 18.🏗️ Which of these gets its strength from arches or domes? (a) an old stone bridge (b) a bridge truss (c) a bamboo pole (d) an electric tower
19. 19.⚖️ 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
20. 20.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a wet flat sheet (c) one flat sheet (d) a torn flat sheet
21. 21.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
22. 22.🔮 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
23. 23.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) coins (d) a balloon
24. 24.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
25. 25.⚖️ 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
26. 26.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) a battery cell (d) a ruler
27. 27.🛟 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
28. 28.True or false: a battery cell is needed for the paper bridge. (a) False (b) True
29. 29.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
30. 30.True or false: an electric tower gets its strength from arches or domes. (a) False (b) True
31. 31.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
32. 32.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) paper with folded edges (c) a wet flat sheet (d) one flat sheet
33. 33.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
34. 34.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) more (c) fewer (d) zero
35. 35.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) an electric tower (c) a bamboo pole (d) a hollow bird bone
36. 36.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of coins (b) coins it holds (c) the shape of the paper
37. 37.True or false: two books is not needed for the paper bridge. (a) True (b) False
38. 38.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) a bridge truss (c) a roof frame (d) a bamboo pole
39. 39.🧺 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 battery cell
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) sheets of paper (d) a mirror

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