Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 232 · 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 a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
2. 2.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a wet flat sheet (c) rolled paper tubes (d) a torn flat sheet
3. 3.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a wet flat sheet (c) a U-shaped channel (d) rolled paper tubes
4. 4.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
5. 5.⚖️ 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
6. 6.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a zigzag-folded sheet (c) rolled paper tubes (d) one flat sheet
7. 7.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a temple dome (c) a bamboo pole (d) an old stone bridge
8. 8.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) the shape of the paper (c) the kind of paper (d) coins it holds
9. 9.True or false: an electric tower gets its strength from arches or domes. (a) False (b) True
10. 10.🛟 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
11. 11.True or false: an electric tower gets its strength from a tube shape. (a) True (b) False
12. 12.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
13. 13.⚖️ 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
14. 14.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
15. 15.⚖️ 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
16. 16.True or false: coins is not needed for the paper bridge. (a) False (b) True
17. 17.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) a balloon (d) coins
18. 18.🏗️ Where does a round pillar get its strength from? (a) triangles (b) tubes (c) arches and domes
19. 19.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) True (b) False
20. 20.🔮 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
21. 21.🥚 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
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) sheets of paper (c) two books (d) a ruler
23. 23.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a wet flat sheet (c) paper with folded edges (d) rolled paper tubes
24. 24.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
25. 25.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) more (c) the same number of (d) zero
26. 26.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) triangles (c) tubes
27. 27.True or false: an electric tower gets its strength from triangles. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) a flat tissue (b) paper with folded edges (c) a wet flat sheet (d) one flat sheet
29. 29.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
30. 30.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a round pillar (c) a roof frame (d) a bamboo pole
31. 31.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
32. 32.🌉 Which of these makes a weak bridge? (a) a torn flat sheet (b) a U-shaped channel (c) rolled paper tubes (d) paper with folded edges
33. 33.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it turns to card (c) it sags and falls (d) it floats up
34. 34.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
35. 35.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a mirror (c) coins (d) a ruler
36. 36.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a ruler (d) a battery cell
37. 37.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) sheets of paper (c) coins (d) a ruler
38. 38.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
39. 39.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) triangles (c) arches and domes
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) yeast (c) sheets of paper (d) coins

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