Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 380 · 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 two books for the paper bridge? (a) not needed (b) needed
2. 2.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
3. 3.True or false: a hollow bird bone gets its strength from arches or domes. (a) True (b) False
4. 4.True or false: one flat sheet makes a strong bridge. (a) True (b) False
5. 5.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) low and steady (d) on a stool edge
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) yeast (c) two books (d) coins
7. 7.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) the same number of (d) more
8. 8.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
9. 9.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) wash your hands (c) lick your fingers (d) skip washing
10. 10.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the gap between books (b) the kind of paper (c) where coins are placed (d) the shape of the paper
11. 11.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) triangles (c) arches and domes
12. 12.⚖️ 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
13. 13.🔍 Which is the odd one out? (a) a wet flat sheet (b) paper with folded edges (c) a zigzag-folded sheet (d) rolled paper tubes
14. 14.True or false: a round pillar gets its strength from arches or domes. (a) False (b) True
15. 15.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
16. 16.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
18. 18.🏗️ Where does a round pillar get its strength from? (a) tubes (b) arches and domes (c) triangles
19. 19.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is magnetic (c) it is very hot (d) its curved arch shape
20. 20.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
21. 21.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) a bridge truss (c) a temple dome (d) a round pillar
22. 22.⚖️ 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
23. 23.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds add glue (c) folds make it stiffer (d) folds are magnetic
24. 24.True or false: a ruler is needed for the paper bridge. (a) False (b) True
25. 25.🔍 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 floats up (d) it sags and falls
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) turmeric powder (d) sheets of paper
27. 27.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) two books (c) sheets of paper (d) turmeric powder
28. 28.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
29. 29.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) True (b) False
30. 30.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a torn flat sheet (c) a U-shaped channel (d) a flat tissue
31. 31.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) paper with folded edges (c) rolled paper tubes (d) a zigzag-folded sheet
32. 32.🧺 Which of these is not needed for the paper bridge? (a) coins (b) two books (c) a balloon (d) a ruler
33. 33.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
34. 34.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a temple dome (c) a round pillar (d) a bridge truss
35. 35.True or false: yeast is needed for the paper bridge. (a) False (b) True
36. 36.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False
37. 37.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) only water (c) the same coins (d) fewer coins
38. 38.🔍 Which is the odd one out? (a) a wet flat sheet (b) one flat sheet (c) rolled paper tubes (d) a torn flat sheet
39. 39.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
40. 40.🧺 Which of these is needed for the paper bridge? (a) two books (b) a mirror (c) a magnet (d) a balloon

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