Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 511 · 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: sheets of paper is needed for the paper bridge. (a) True (b) False
2. 2.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it stiffer (c) folds make it wet (d) folds are magnetic
3. 3.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
4. 4.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) wash your hands (c) rub your eyes (d) skip washing
5. 5.🔍 Which is the odd one out? (a) a U-shaped channel (b) a zigzag-folded sheet (c) a wet flat sheet (d) paper with folded edges
6. 6.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
7. 7.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) an electric tower (c) a hollow bird bone (d) a temple dome
8. 8.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) paper with folded edges (c) a torn flat sheet (d) a U-shaped channel
9. 9.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a battery cell (c) sheets of paper (d) yeast
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) sheets of paper (c) coins (d) two books
11. 11.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a bamboo pole (c) an eggshell (d) a bridge truss
12. 12.True or false: yeast is not needed for the paper bridge. (a) False (b) True
13. 13.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a U-shaped channel (c) a zigzag-folded sheet (d) one flat sheet
14. 14.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
15. 15.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the gap between books (b) the kind of coins (c) the shape of the paper (d) where coins are placed
16. 16.🏗️ Where does a temple dome get its strength from? (a) triangles (b) arches and domes (c) tubes
17. 17.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a magnet (c) sheets of paper (d) two books
18. 18.🏗️ Where does an eggshell get its strength from? (a) tubes (b) triangles (c) arches and domes
19. 19.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
20. 20.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) more (c) not at all (d) less
21. 21.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
22. 22.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is made of steel (c) it is very hot (d) it is magnetic
23. 23.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) low and steady (c) high and wobbly (d) on a stool edge
24. 24.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a bridge truss (c) a temple dome (d) a roof frame
25. 25.⚖️ 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
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) coins (c) a ruler (d) two books
27. 27.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
28. 28.⚖️ 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
29. 29.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) True (b) False
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) yeast (d) two books
31. 31.True or false: a round pillar gets its strength from a tube shape. (a) True (b) False
32. 32.🧺 Which of these is not needed for the paper bridge? (a) a balloon (b) sheets of paper (c) two books (d) a ruler
33. 33.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of paper (b) the shape of the paper (c) coins it holds
34. 34.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) rolled paper tubes (c) a zigzag-folded sheet (d) paper with folded edges
35. 35.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True
36. 36.True or false: a balloon is needed for the paper bridge. (a) False (b) True
37. 37.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) False (b) True
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a magnet (c) sheets of paper (d) coins
39. 39.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a bamboo pole (c) a round pillar (d) an eggshell
40. 40.True or false: a hollow bird bone gets its strength from triangles. (a) True (b) False

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