Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 260 · 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.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True
2. 2.⚖️ 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) where coins are placed (c) the kind of coins (d) coins it holds
3. 3.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we keep it the same (b) we change it (c) we measure it
4. 4.True or false: coins is needed for the paper bridge. (a) False (b) True
5. 5.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) upward (c) less (d) not at all
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) a balloon (d) sheets of paper
7. 7.True or false: a hollow bird bone gets its strength from arches or domes. (a) False (b) True
8. 8.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) rolled paper tubes (c) a zigzag-folded sheet (d) a U-shaped channel
9. 9.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) wash your hands (c) rub your eyes (d) lick your fingers
10. 10.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a balloon (c) a ruler (d) two books
11. 11.🏗️ Where does a temple dome get its strength from? (a) triangles (b) arches and domes (c) tubes
12. 12.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) False (b) True
13. 13.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
14. 14.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) one flat sheet (d) paper with folded edges
15. 15.⚖️ 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 coins
16. 16.True or false: a ruler is needed for the paper bridge. (a) True (b) False
17. 17.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
18. 18.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) the kind of paper (c) the kind of coins (d) coins it holds
19. 19.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
20. 20.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) triangles (c) arches and domes
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) coins (d) a magnet
22. 22.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
23. 23.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) the same number of (c) fewer (d) more
24. 24.🏗️ Where does an eggshell get its strength from? (a) triangles (b) arches and domes (c) tubes
25. 25.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
26. 26.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
27. 27.⚖️ 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
28. 28.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the heart shape (c) the square (d) the triangle
29. 29.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds add glue (c) folds make it stiffer (d) folds are magnetic
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a mirror (d) a ruler
31. 31.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a temple dome (c) a hollow bird bone (d) a roof frame
32. 32.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a temple dome (c) a roof frame (d) a hollow bird bone
33. 33.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) False (b) True
34. 34.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) low and steady (d) high and wobbly
35. 35.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a wet flat sheet (c) a zigzag-folded sheet (d) a torn flat sheet
36. 36.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) a hollow bird bone (c) a temple dome (d) a bridge truss
37. 37.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) triangles (c) tubes
38. 38.🔍 Which is the odd one out? (a) a wet flat sheet (b) one flat sheet (c) a flat tissue (d) rolled paper tubes
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) two books (d) a battery cell
40. 40.🔍 Which is the odd one out? (a) paper with folded edges (b) a torn flat sheet (c) rolled paper tubes (d) a zigzag-folded sheet

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