Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 96 · 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 gets its strength from arches or domes? (a) an eggshell (b) a bridge truss (c) a bamboo pole (d) an electric tower
2. 2.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) a temple dome (c) an electric tower (d) an old stone bridge
3. 3.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it sags and falls (c) it turns to card (d) it gets stronger
4. 4.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) a bridge truss (c) a bamboo pole (d) a roof frame
5. 5.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) a ruler (c) coins (d) two books
6. 6.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
7. 7.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) False (b) True
8. 8.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) high and wobbly (c) on top of a pet (d) low and steady
9. 9.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds make it wet (c) folds are magnetic (d) folds add glue
10. 10.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) the kind of paper (c) the shape of the paper (d) coins it holds
11. 11.⚖️ 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
12. 12.🔍 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
13. 13.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) arches and domes (c) tubes
14. 14.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
15. 15.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
16. 16.True or false: one flat sheet makes a weak bridge. (a) True (b) False
17. 17.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
18. 18.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) turmeric powder (c) a magnet (d) coins
19. 19.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
20. 20.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) more (c) not at all (d) upward
21. 21.🧺 Which of these is not needed for the paper bridge? (a) turmeric powder (b) coins (c) a ruler (d) sheets of paper
22. 22.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a zigzag-folded sheet (c) a wet flat sheet (d) rolled paper tubes
23. 23.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) a mirror (d) sheets of paper
24. 24.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
25. 25.True or false: a balloon is not needed for the paper bridge. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) rolled paper tubes (b) a zigzag-folded sheet (c) paper with folded edges (d) a wet flat sheet
27. 27.⚖️ 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) where coins are placed
28. 28.⚖️ 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
29. 29.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) a balloon (d) two books
30. 30.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) lick your fingers (c) rub your eyes (d) wash your hands
31. 31.⚖️ 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
32. 32.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
33. 33.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
34. 34.🥚 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 magnetic (d) it is very hot
35. 35.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) paper with folded edges (d) one flat sheet
36. 36.True or false: a ruler is needed for the paper bridge. (a) True (b) False
37. 37.True or false: a roof frame gets its strength from a tube shape. (a) True (b) False
38. 38.⚖️ 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) the kind of coins (d) where coins are placed
39. 39.⚖️ 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 keep it the same (c) we measure it
40. 40.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True

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