Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 144 · 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.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it wet (c) folds add glue (d) folds make it stiffer
2. 2.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
3. 3.🏗️ Where does a roof frame get its strength from? (a) triangles (b) arches and domes (c) tubes
4. 4.True or false: an electric tower gets its strength from a tube shape. (a) False (b) True
5. 5.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) lick your fingers (c) rub your eyes (d) skip washing
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) coins (d) a magnet
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) True (b) False
8. 8.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
9. 9.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) sheets of paper (d) a mirror
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) sheets of paper (d) a mirror
11. 11.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we keep it the same (c) we measure it
12. 12.⚖️ 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
13. 13.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a temple dome (c) a bridge truss (d) a round pillar
14. 14.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
15. 15.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) fewer (d) more
16. 16.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a U-shaped channel (c) a wet flat sheet (d) a flat tissue
17. 17.True or false: a bamboo pole gets its strength from triangles. (a) True (b) False
18. 18.🏗️ Which of these gets its strength from a tube shape? (a) a round pillar (b) an electric tower (c) a bridge truss (d) a temple dome
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) turmeric powder (c) coins (d) two books
20. 20.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it gets stronger (c) it turns to card (d) it sags and falls
21. 21.⚖️ 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 measure it (c) we keep it the same
22. 22.⚖️ 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 measure it (c) we change it
23. 23.True or false: yeast is not needed for the paper bridge. (a) False (b) True
24. 24.True or false: a temple dome gets its strength from triangles. (a) False (b) True
25. 25.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
26. 26.🧺 Which of these is needed for the paper bridge? (a) a ruler (b) a battery cell (c) a mirror (d) a magnet
27. 27.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) arches and domes (c) triangles
28. 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a balloon (c) two books (d) sheets of paper
29. 29.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
30. 30.⚖️ 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 gap between books (d) the kind of paper
31. 31.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
32. 32.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) a flat tissue (b) a wet flat sheet (c) a torn flat sheet (d) a U-shaped channel
34. 34.🥚 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
35. 35.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
36. 36.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) on a stool edge (c) low and steady (d) high and wobbly
37. 37.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) a magnet (c) turmeric powder (d) a mirror
38. 38.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
39. 39.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) coins (d) a battery cell

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