Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 747 · 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? True or false: the kind of coins is the one thing we change. (a) False (b) True
2. 2.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a balloon (c) sheets of paper (d) a battery cell
3. 3.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
4. 4.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
5. 5.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) only water (c) more coins (d) fewer coins
6. 6.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
7. 7.⚖️ 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
8. 8.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) triangles (c) tubes
9. 9.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
10. 10.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) arches and domes (c) tubes
11. 11.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) lick your fingers (c) wash your hands (d) rub your eyes
12. 12.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the star (c) the heart shape (d) the square
13. 13.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a balloon (c) coins (d) a ruler
14. 14.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) yeast (c) two books (d) sheets of paper
15. 15.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) less (c) upward (d) more
16. 16.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) where coins are placed (c) the shape of the paper
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
18. 18.🌉 Which of these makes a strong bridge? (a) a U-shaped channel (b) a torn flat sheet (c) one flat sheet (d) a wet flat sheet
19. 19.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) low and steady (c) high and wobbly (d) on a stool edge
20. 20.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
21. 21.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
22. 22.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the gap between books (c) the shape of the paper
23. 23.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
24. 24.⚖️ 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 kind of coins (d) where coins are placed
25. 25.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is magnetic (c) its curved arch shape (d) it is made of steel
26. 26.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it sags and falls (c) it gets stronger (d) it floats up
27. 27.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) coins (d) yeast
28. 28.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
29. 29.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) a magnet (d) two books
30. 30.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
31. 31.True or false: a bamboo pole gets its strength from triangles. (a) True (b) False
32. 32.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
33. 33.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
34. 34.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
35. 35.🌉 Which of these makes a strong bridge? (a) rolled paper tubes (b) a wet flat sheet (c) a flat tissue (d) one flat sheet
36. 36.🔍 Which is the odd one out? (a) a torn flat sheet (b) rolled paper tubes (c) a wet flat sheet (d) one flat sheet
37. 37.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) tubes (c) arches and domes
38. 38.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we measure it (c) we change it
39. 39.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
40. 40.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we keep it the same (c) we change it

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