Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 659 · 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.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) coins (c) two books (d) yeast
2. 2.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) the shape of the paper (c) the kind of coins (d) coins it holds
3. 3.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) sheets of paper (d) a magnet
4. 4.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) only water (d) fewer coins
5. 5.⚖️ 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
6. 6.🔍 Which is the odd one out? (a) one flat sheet (b) rolled paper tubes (c) a flat tissue (d) a torn flat sheet
7. 7.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we keep it the same (b) we change it (c) we measure it
8. 8.True or false: a flat tissue makes a strong bridge. (a) True (b) False
9. 9.True or false: a bamboo pole gets its strength from a tube shape. (a) True (b) False
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) yeast (d) a ruler
11. 11.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) the kind of paper (c) coins it holds (d) the shape of the paper
12. 12.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) zero (d) the same number of
13. 13.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
14. 14.🌉 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
15. 15.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
16. 16.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) skip washing (d) wash your hands
17. 17.True or false: an electric tower gets its strength from a tube shape. (a) True (b) False
18. 18.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) paper with folded edges (c) a zigzag-folded sheet (d) a torn flat sheet
19. 19.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we measure it (b) we keep it the same (c) we change it
20. 20.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it turns to card (c) it floats up (d) it gets stronger
21. 21.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
22. 22.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) an electric tower (c) an eggshell (d) a round pillar
23. 23.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
24. 24.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
25. 25.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a bamboo pole (c) a hollow bird bone (d) a bridge truss
26. 26.⚖️ 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
27. 27.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) not at all (c) less (d) more
28. 28.True or false: a roof frame gets its strength from triangles. (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) coins (d) a mirror
30. 30.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
31. 31.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) one flat sheet (c) a U-shaped channel (d) rolled paper tubes
32. 32.True or false: two books is not needed for the paper bridge. (a) True (b) False
33. 33.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) paper with folded edges (c) a torn flat sheet (d) one flat sheet
34. 34.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
35. 35.True or false: an old stone bridge gets its strength from arches or domes. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) one flat sheet (b) rolled paper tubes (c) a zigzag-folded sheet (d) a U-shaped channel
37. 37.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) paper with folded edges (c) a flat tissue (d) rolled paper tubes
38. 38.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we keep it the same (c) we measure it
39. 39.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we keep it the same (c) we change it
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) coins (d) a magnet

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