Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 641 · 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.⚖️ 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 kind of coins
2. 2.True or false: coins is needed for the paper bridge. (a) True (b) False
3. 3.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) two books (d) turmeric powder
4. 4.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) upward (c) more (d) not at all
5. 5.True or false: two books is needed for the paper bridge. (a) True (b) False
6. 6.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is very hot (c) its curved arch shape (d) it is magnetic
7. 7.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) an electric tower (c) a temple dome (d) a roof frame
8. 8.🏗️ Where does an electric tower get its strength from? (a) tubes (b) arches and domes (c) triangles
9. 9.🔍 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
10. 10.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
11. 11.True or false: two books is not needed for the paper bridge. (a) False (b) True
12. 12.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a mirror (c) sheets of paper (d) coins
13. 13.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) more coins (d) fewer coins
14. 14.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
15. 15.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) coins (d) a magnet
16. 16.🏗️ Which of these gets its strength from triangles? (a) an electric tower (b) a temple dome (c) an old stone bridge (d) a round pillar
17. 17.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds add glue (c) folds make it wet (d) folds are magnetic
18. 18.⚖️ 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 kind of coins (c) the shape of the paper (d) coins it holds
19. 19.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) low and steady (c) on top of a pet (d) on a stool edge
20. 20.True or false: a ruler is needed for the paper bridge. (a) True (b) False
21. 21.🛟 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
22. 22.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
23. 23.⚖️ 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
24. 24.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) fewer (c) more (d) zero
25. 25.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
26. 26.True or false: a ruler is not needed for the paper bridge. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) a flat tissue (b) a U-shaped channel (c) paper with folded edges (d) a zigzag-folded sheet
28. 28.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
29. 29.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False
30. 30.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) coins (c) turmeric powder (d) two books
31. 31.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a balloon (d) a ruler
32. 32.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a flat tissue (c) rolled paper tubes (d) a wet flat sheet
33. 33.True or false: a roof frame gets its strength from arches or domes. (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 change it (b) we measure it (c) we keep it the same
35. 35.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the heart shape (c) the square (d) the triangle
36. 36.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) an old stone bridge (c) a hollow bird bone (d) a temple dome
37. 37.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
38. 38.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
39. 39.True or false: turmeric powder is not needed for the paper bridge. (a) True (b) False
40. 40.True or false: a flat tissue makes a strong bridge. (a) False (b) True

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