Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 128 · 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.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
2. 2.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
3. 3.True or false: a U-shaped channel makes a strong bridge. (a) True (b) False
4. 4.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) an old stone bridge (c) an electric tower (d) a hollow bird bone
5. 5.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
6. 6.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we change it (c) we keep it the same
7. 7.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
8. 8.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it floats up (c) it turns to card (d) it gets stronger
9. 9.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) an old stone bridge (c) a bridge truss (d) a temple dome
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) a balloon (d) coins
11. 11.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) less (c) not at all (d) more
12. 12.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) sheets of paper (c) a battery cell (d) yeast
13. 13.⚖️ 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) where coins are placed (d) the gap between books
14. 14.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) more coins (c) only water (d) the same coins
15. 15.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
16. 16.True or false: a temple dome gets its strength from a tube shape. (a) False (b) True
17. 17.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
18. 18.🏗️ Where does a temple dome get its strength from? (a) triangles (b) arches and domes (c) tubes
19. 19.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
20. 20.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we keep it the same (c) we measure it
21. 21.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
22. 22.🔍 Which is the odd one out? (a) a U-shaped channel (b) rolled paper tubes (c) a zigzag-folded sheet (d) a flat tissue
23. 23.⚖️ 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
24. 24.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a balloon (c) a mirror (d) coins
25. 25.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the kind of paper (c) coins it holds
26. 26.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
27. 27.True or false: one flat sheet makes a strong bridge. (a) True (b) False
28. 28.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on a stool edge (c) high and wobbly (d) on top of a pet
29. 29.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we change it (c) we keep it the same
30. 30.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the shape of the paper (c) the gap between books (d) where coins are placed
31. 31.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
32. 32.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) more (c) zero (d) the same number of
33. 33.True or false: an old stone bridge gets its strength from triangles. (a) True (b) False
34. 34.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we measure it (c) we change it
35. 35.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) wash your hands (d) skip washing
36. 36.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
37. 37.⚖️ 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) the gap between books
38. 38.🌉 Which of these makes a strong bridge? (a) a zigzag-folded sheet (b) a wet flat sheet (c) a flat tissue (d) a torn flat sheet
39. 39.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is very hot (c) it is made of steel (d) it is magnetic
40. 40.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed

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