Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 698 · 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? What do we do with “the kind of paper”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a magnet (c) a ruler (d) a balloon
3. 3.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) turmeric powder (c) two books (d) coins
4. 4.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) more (d) fewer
5. 5.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) upward (c) not at all (d) more
6. 6.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) triangles (c) arches and domes
7. 7.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) skip washing (d) lick your fingers
8. 8.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we keep it the same (c) we measure it
9. 9.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) coins (d) yeast
11. 11.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
12. 12.True or false: an eggshell gets its strength from a tube shape. (a) False (b) True
13. 13.True or false: a roof frame gets its strength from a tube shape. (a) True (b) False
14. 14.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it wet (c) folds make it stiffer (d) folds add glue
15. 15.True or false: a balloon is not needed for the paper bridge. (a) True (b) False
16. 16.⚖️ 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
17. 17.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
18. 18.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
19. 19.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) tubes (c) triangles
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a balloon (c) two books (d) a ruler
21. 21.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a hollow bird bone (c) a bamboo pole (d) an electric tower
22. 22.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) sheets of paper (c) a balloon (d) turmeric powder
23. 23.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) two books (d) a battery cell
24. 24.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) a bamboo pole (c) a round pillar (d) an old stone bridge
25. 25.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
26. 26.True or false: coins is not needed for the paper bridge. (a) False (b) True
27. 27.True or false: a zigzag-folded sheet makes a strong bridge. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) a wet flat sheet (b) a zigzag-folded sheet (c) one flat sheet (d) a torn flat sheet
29. 29.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the star (c) the triangle (d) the heart shape
30. 30.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a U-shaped channel (c) one flat sheet (d) a zigzag-folded sheet
31. 31.🔍 Which is the odd one out? (a) paper with folded edges (b) rolled paper tubes (c) a wet flat sheet (d) a zigzag-folded sheet
32. 32.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
33. 33.True or false: coins is needed for the paper bridge. (a) True (b) False
34. 34.⚖️ 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
35. 35.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the gap between books (b) the shape of the paper (c) coins it holds
36. 36.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we measure it (c) we keep it the same
37. 37.⚖️ 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) coins it holds (d) the kind of coins
38. 38.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) paper with folded edges (d) one flat sheet
39. 39.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is made of steel (c) it is very hot (d) its curved arch shape
40. 40.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) on a stool edge (d) low and steady

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