Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 590 · 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 flat tissue (b) one flat sheet (c) rolled paper tubes (d) a wet flat sheet
2. 2.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) two books (c) a ruler (d) a magnet
3. 3.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we keep it the same (b) we change it (c) we measure it
4. 4.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
5. 5.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) lick your fingers (d) wash your hands
6. 6.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
7. 7.⚖️ 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 coins (c) coins it holds (d) the gap between books
8. 8.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) more (c) less (d) not at all
9. 9.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
10. 10.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) the shape of the paper (c) coins it holds (d) the kind of coins
11. 11.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
12. 12.True or false: one flat sheet makes a strong bridge. (a) True (b) False
13. 13.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (a) False (b) True
14. 14.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
15. 15.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) sheets of paper (d) a battery cell
16. 16.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
17. 17.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) a round pillar (c) an eggshell (d) an electric tower
18. 18.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) paper with folded edges (d) a wet flat sheet
19. 19.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
20. 20.True or false: a hollow bird bone gets its strength from triangles. (a) False (b) True
21. 21.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
22. 22.🏗️ Which of these gets its strength from a tube shape? (a) a hollow bird bone (b) a bridge truss (c) an electric tower (d) an old stone bridge
23. 23.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) its curved arch shape (c) it is very hot (d) it is magnetic
24. 24.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) paper with folded edges (d) a flat tissue
25. 25.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
26. 26.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) a ruler (d) turmeric powder
27. 27.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
28. 28.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a flat tissue (c) one flat sheet (d) a U-shaped channel
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.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it floats up (c) it turns to card (d) it sags and falls
31. 31.🔍 Which is the odd one out? (a) a torn flat sheet (b) a wet flat sheet (c) a flat tissue (d) a zigzag-folded sheet
32. 32.True or false: coins is needed for the paper bridge. (a) True (b) False
33. 33.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) where coins are placed
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) turmeric powder (d) coins
35. 35.🌉 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
36. 36.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
37. 37.🔺 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
38. 38.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) False (b) True
39. 39.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
40. 40.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) turmeric powder (c) sheets of paper (d) a balloon

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