Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 363 · 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 an old stone bridge get its strength from? (a) tubes (b) triangles (c) arches and domes
2. 2.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a ruler (c) a magnet (d) yeast
3. 3.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) rolled paper tubes (c) a zigzag-folded sheet (d) a torn flat sheet
4. 4.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a U-shaped channel (c) rolled paper tubes (d) a flat tissue
5. 5.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) two books (c) turmeric powder (d) a mirror
6. 6.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we change it (c) we keep it the same
7. 7.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) triangles (c) tubes
8. 8.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
9. 9.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) more (d) fewer
10. 10.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) wash your hands (d) skip washing
11. 11.True or false: an old stone bridge gets its strength from triangles. (a) True (b) False
12. 12.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
13. 13.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) arches and domes (c) tubes
14. 14.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) the same coins (c) more coins (d) fewer coins
15. 15.True or false: a bamboo pole gets its strength from arches or domes. (a) False (b) True
16. 16.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a zigzag-folded sheet (c) rolled paper tubes (d) a wet flat sheet
17. 17.🏗️ Where does a temple dome get its strength from? (a) arches and domes (b) tubes (c) triangles
18. 18.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
19. 19.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
20. 20.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the triangle (c) the square (d) the heart shape
21. 21.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
22. 22.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) upward (c) more (d) not at all
23. 23.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) a mirror (d) two books
24. 24.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
25. 25.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
26. 26.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (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: a ruler is not needed for the paper bridge. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) a wet flat sheet (b) a flat tissue (c) a zigzag-folded sheet (d) one flat sheet
30. 30.⚖️ 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 change it (c) we measure it
31. 31.🔍 Which is the odd one out? (a) a U-shaped channel (b) a wet flat sheet (c) rolled paper tubes (d) a zigzag-folded sheet
32. 32.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a zigzag-folded sheet (c) one flat sheet (d) a torn flat sheet
33. 33.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a temple dome (c) a roof frame (d) an eggshell
34. 34.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it turns to card (c) it gets stronger (d) it sags and falls
35. 35.True or false: a round pillar gets its strength from a tube shape. (a) True (b) False
36. 36.🥚 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
37. 37.🌉 Which of these makes a strong bridge? (a) a U-shaped channel (b) a torn flat sheet (c) a flat tissue (d) one flat sheet
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a battery cell (c) coins (d) two books
39. 39.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
40. 40.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) low and steady (c) on a stool edge (d) on top of a pet

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