Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 958 · 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? What do we do with “where coins are placed”? (a) we keep it the same (b) we measure it (c) we change it
2. 2.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a torn flat sheet (d) rolled paper tubes
3. 3.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) two books (c) yeast (d) coins
4. 4.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) tubes (c) triangles
5. 5.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
6. 6.True or false: a round pillar gets its strength from triangles. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) rolled paper tubes (b) a wet flat sheet (c) a U-shaped channel (d) a zigzag-folded sheet
8. 8.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) upward (c) less (d) more
9. 9.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) wash your hands (c) skip washing (d) lick your fingers
10. 10.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) high and wobbly (c) low and steady (d) on top of a pet
11. 11.🔍 Which is the odd one out? (a) a flat tissue (b) a U-shaped channel (c) a zigzag-folded sheet (d) rolled paper tubes
12. 12.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
13. 13.🏗️ Where does an electric tower get its strength from? (a) tubes (b) triangles (c) arches and domes
14. 14.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) sheets of paper (c) a ruler (d) two books
15. 15.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
16. 16.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) False (b) True
17. 17.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
18. 18.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) a flat tissue (b) a wet flat sheet (c) one flat sheet (d) rolled paper tubes
20. 20.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a wet flat sheet (c) paper with folded edges (d) one flat sheet
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) a ruler (c) coins (d) sheets of paper
22. 22.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a roof frame (c) an old stone bridge (d) a bamboo pole
23. 23.⚖️ 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 shape of the paper (c) the kind of paper (d) where coins are placed
24. 24.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
25. 25.True or false: a battery cell is needed for the paper bridge. (a) False (b) True
26. 26.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) the same number of (c) fewer (d) zero
27. 27.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it floats up (c) it sags and falls (d) it turns to card
28. 28.True or false: a ruler is not needed for the paper bridge. (a) True (b) False
29. 29.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) False (b) True
30. 30.True or false: a roof frame gets its strength from arches or domes. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) a U-shaped channel (b) paper with folded edges (c) one flat sheet (d) rolled paper tubes
32. 32.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) the kind of coins
33. 33.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) False (b) True
34. 34.🏗️ Where does a round pillar get its strength from? (a) triangles (b) arches and domes (c) tubes
35. 35.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
36. 36.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
37. 37.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we keep it the same (c) we measure it
38. 38.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) arches and domes (c) triangles
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) True (b) False
40. 40.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it stiffer (c) folds make it wet (d) folds are magnetic

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