Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 591 · 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.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) tubes (c) triangles
2. 2.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) an eggshell (c) a bridge truss (d) a bamboo pole
3. 3.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) lick your fingers (c) wash your hands (d) skip washing
4. 4.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
5. 5.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False
6. 6.True or false: a bamboo pole gets its strength from arches or domes. (a) False (b) True
7. 7.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) a bamboo pole (c) a bridge truss (d) a temple dome
8. 8.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) an old stone bridge (c) an eggshell (d) a bridge truss
9. 9.True or false: a roof frame gets its strength from triangles. (a) False (b) True
10. 10.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) less (c) more (d) not at all
11. 11.🔍 Which is the odd one out? (a) a wet flat sheet (b) a torn flat sheet (c) paper with folded edges (d) one flat sheet
12. 12.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
13. 13.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it sags and falls (c) it floats up (d) it turns to card
14. 14.True or false: paper with folded edges makes a weak bridge. (a) True (b) False
15. 15.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) low and steady (c) on a stool edge (d) high and wobbly
16. 16.🔍 Which is the odd one out? (a) one flat sheet (b) a wet flat sheet (c) a zigzag-folded sheet (d) a torn flat sheet
17. 17.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
18. 18.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
19. 19.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a battery cell (c) a magnet (d) coins
20. 20.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
21. 21.🏗️ Where does an eggshell get its strength from? (a) tubes (b) triangles (c) arches and domes
22. 22.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
23. 23.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) more (c) the same number of (d) zero
24. 24.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a mirror (c) sheets of paper (d) yeast
25. 25.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) a balloon (d) two books
26. 26.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
27. 27.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
28. 28.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
29. 29.True or false: a bridge truss gets its strength from a tube shape. (a) False (b) True
30. 30.🧺 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) a balloon
31. 31.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we change it (c) we keep it the same
32. 32.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) its curved arch shape (c) it is magnetic (d) it is very hot
33. 33.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (a) False (b) True
34. 34.True or false: one flat sheet makes a strong bridge. (a) True (b) False
35. 35.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we measure it (c) we change it
36. 36.True or false: a flat tissue makes a strong bridge. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) paper with folded edges (b) a torn flat sheet (c) a zigzag-folded sheet (d) a U-shaped channel
38. 38.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we keep it the same (c) we measure it
39. 39.True or false: a roof frame gets its strength from a tube shape. (a) False (b) True
40. 40.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True

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