Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 842 · 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.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
2. 2.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is made of steel (c) its curved arch shape (d) it is very hot
3. 3.🏗️ Where does an electric tower get its strength from? (a) triangles (b) arches and domes (c) tubes
4. 4.🛟 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
5. 5.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) a temple dome (c) a roof frame (d) an electric tower
6. 6.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we keep it the same (b) we measure it (c) we change it
7. 7.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
8. 8.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) only water (c) more coins (d) fewer coins
9. 9.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) wash your hands (c) skip washing (d) rub your eyes
10. 10.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a U-shaped channel (c) a zigzag-folded sheet (d) a torn flat sheet
11. 11.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) coins (d) a mirror
13. 13.🔍 Which is the odd one out? (a) rolled paper tubes (b) a U-shaped channel (c) paper with folded edges (d) one flat sheet
14. 14.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it gets stronger (c) it sags and falls (d) it floats up
15. 15.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
16. 16.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
17. 17.True or false: coins is needed for the paper bridge. (a) True (b) False
18. 18.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) triangles (c) tubes
19. 19.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) tubes (c) triangles
20. 20.⚖️ 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
21. 21.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a balloon (c) a ruler (d) two books
23. 23.🧺 Which of these is needed for the paper bridge? (a) yeast (b) turmeric powder (c) a ruler (d) a battery cell
24. 24.True or false: a magnet is needed for the paper bridge. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) a torn flat sheet (b) a flat tissue (c) rolled paper tubes (d) one flat sheet
26. 26.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
27. 27.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a U-shaped channel (c) paper with folded edges (d) one flat sheet
28. 28.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) a ruler (d) a balloon
29. 29.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
30. 30.🧺 Which of these is needed for the paper bridge? (a) two books (b) yeast (c) a balloon (d) a battery cell
31. 31.True or false: a temple dome gets its strength from a tube shape. (a) False (b) True
32. 32.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) turmeric powder (c) a ruler (d) coins
33. 33.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) two books (c) coins (d) a magnet
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) sheets of paper (c) two books (d) coins
35. 35.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) where coins are placed (c) coins it holds (d) the kind of paper
36. 36.True or false: two books is not needed for the paper bridge. (a) False (b) True
37. 37.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
38. 38.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
39. 39.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) more (c) zero (d) fewer
40. 40.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) upward (c) more (d) less

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