Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 512 · 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.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
2. 2.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a battery cell (c) two books (d) sheets of paper
3. 3.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is the one thing we change. (a) True (b) False
4. 4.🔺 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 triangle (d) the square
5. 5.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) an old stone bridge (c) a bridge truss (d) an eggshell
6. 6.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
7. 7.🏗️ 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
8. 8.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) not at all (c) upward (d) more
9. 9.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of coins (b) the shape of the paper (c) coins it holds
10. 10.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a mirror (c) a balloon (d) two books
11. 11.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
12. 12.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is very hot (c) its curved arch shape (d) it is made of steel
13. 13.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a bamboo pole (c) an old stone bridge (d) a roof frame
14. 14.True or false: a roof frame gets its strength from a tube shape. (a) False (b) True
15. 15.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the shape of the paper (b) coins it holds (c) the kind of paper (d) the kind of coins
16. 16.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) paper with folded edges (c) a flat tissue (d) a U-shaped channel
17. 17.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a ruler (c) a magnet (d) coins
18. 18.🔍 Which is the odd one out? (a) a U-shaped channel (b) a zigzag-folded sheet (c) a wet flat sheet (d) rolled paper tubes
19. 19.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) triangles (c) arches and domes
20. 20.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) coins it holds (c) the kind of coins (d) the gap between books
21. 21.True or false: two books is not needed for the paper bridge. (a) True (b) False
22. 22.⚖️ 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 change it (c) we measure it
23. 23.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) only water (d) fewer coins
24. 24.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) a magnet (d) sheets of paper
25. 25.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) paper with folded edges (d) a torn flat sheet
26. 26.🔍 Which is the odd one out? (a) a flat tissue (b) rolled paper tubes (c) a torn flat sheet (d) one flat sheet
27. 27.True or false: a battery cell is not needed for the paper bridge. (a) True (b) False
28. 28.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) tubes (c) triangles
29. 29.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) the kind of paper
30. 30.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) one flat sheet (c) a U-shaped channel (d) paper with folded edges
31. 31.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we keep it the same (c) we measure it
32. 32.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
33. 33.🛟 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
34. 34.True or false: an eggshell gets its strength from triangles. (a) False (b) True
35. 35.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the gap between books (c) the shape of the paper
36. 36.🔍 Which is the odd one out? (a) one flat sheet (b) a flat tissue (c) a zigzag-folded sheet (d) a torn flat sheet
37. 37.🏗️ Where does a temple dome get its strength from? (a) arches and domes (b) tubes (c) triangles
38. 38.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
39. 39.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
40. 40.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) an eggshell (c) a hollow bird bone (d) a bridge truss

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