Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 690 · 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? 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
2. 2.True or false: one flat sheet makes a strong bridge. (a) False (b) True
3. 3.🏗️ Which of these gets its strength from arches or domes? (a) a temple dome (b) a round pillar (c) a hollow bird bone (d) a roof frame
4. 4.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
5. 5.🔍 Which is the odd one out? (a) a wet flat sheet (b) one flat sheet (c) a zigzag-folded sheet (d) a torn flat sheet
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) turmeric powder (d) coins
7. 7.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds make it wet (c) folds add glue (d) folds are magnetic
8. 8.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) the shape of the paper (c) the kind of paper (d) the gap between books
9. 9.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a flat tissue (c) rolled paper tubes (d) a U-shaped channel
10. 10.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) two books (c) a balloon (d) coins
11. 11.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
12. 12.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) fewer coins (d) only water
13. 13.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) not at all (c) less (d) upward
14. 14.True or false: a hollow bird bone gets its strength from a tube shape. (a) False (b) True
15. 15.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a ruler (c) yeast (d) turmeric powder
16. 16.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
17. 17.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
18. 18.🏗️ Which of these gets its strength from triangles? (a) a roof frame (b) an eggshell (c) a bamboo pole (d) a temple dome
19. 19.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) rolled paper tubes (c) a torn flat sheet (d) a wet flat sheet
20. 20.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
21. 21.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) the same number of (d) zero
22. 22.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) its curved arch shape (c) it is made of steel (d) it is magnetic
23. 23.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) a torn flat sheet (d) a U-shaped channel
24. 24.True or false: a flat tissue makes a strong bridge. (a) False (b) True
25. 25.🧺 Which of these is not needed for the paper bridge? (a) a magnet (b) sheets of paper (c) two books (d) coins
26. 26.True or false: a roof frame gets its strength from triangles. (a) False (b) True
27. 27.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) yeast (c) turmeric powder (d) two books
28. 28.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
29. 29.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a ruler (c) yeast (d) sheets of paper
30. 30.🔍 Which is the odd one out? (a) a torn flat sheet (b) a zigzag-folded sheet (c) rolled paper tubes (d) paper with folded edges
31. 31.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) rub your eyes (c) wash your hands (d) lick your fingers
32. 32.🏗️ Where does a round pillar get its strength from? (a) tubes (b) triangles (c) arches and domes
33. 33.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) two books (d) yeast
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) a magnet (d) a ruler
35. 35.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a battery cell (c) sheets of paper (d) yeast
36. 36.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) triangles (c) tubes
37. 37.🔍 Which is the odd one out? (a) paper with folded edges (b) rolled paper tubes (c) one flat sheet (d) a U-shaped channel
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 measure it (c) we keep it the same
39. 39.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it gets stronger (c) it floats up (d) it turns to card
40. 40.True or false: an eggshell gets its strength from a tube shape. (a) True (b) False

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