Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 630 · 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) triangles (b) tubes (c) arches and domes
2. 2.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it gets stronger (c) it turns to card (d) it sags and falls
3. 3.⚖️ 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
4. 4.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) fewer (d) more
5. 5.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a torn flat sheet (c) a U-shaped channel (d) a flat tissue
6. 6.True or false: an old stone bridge gets its strength from triangles. (a) True (b) False
7. 7.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on top of a pet (c) on a stool edge (d) high and wobbly
8. 8.⚖️ 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 coins (c) the kind of paper (d) the shape of the paper
9. 9.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we measure it (b) we change it (c) we keep it the same
10. 10.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we keep it the same (c) we change it
11. 11.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) the same coins (c) more coins (d) only water
12. 12.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) a roof frame (c) an eggshell (d) a round pillar
13. 13.True or false: an eggshell gets its strength from a tube shape. (a) False (b) True
14. 14.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) less (c) not at all (d) upward
15. 15.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) the kind of paper (c) coins it holds (d) the shape of the paper
16. 16.🔍 Which is the odd one out? (a) a U-shaped channel (b) a torn flat sheet (c) one flat sheet (d) a wet flat sheet
17. 17.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a ruler (d) a magnet
18. 18.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a bamboo pole (c) a hollow bird bone (d) a bridge truss
19. 19.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) lick your fingers (c) rub your eyes (d) skip washing
20. 20.🔍 Which is the odd one out? (a) rolled paper tubes (b) a U-shaped channel (c) a torn flat sheet (d) a zigzag-folded sheet
21. 21.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) a ruler (d) a balloon
23. 23.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
24. 24.True or false: yeast is needed for the paper bridge. (a) False (b) True
25. 25.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the star (c) the heart shape (d) the triangle
26. 26.True or false: a mirror is needed for the paper bridge. (a) True (b) False
27. 27.True or false: a temple dome gets its strength from triangles. (a) False (b) True
28. 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) coins (c) two books (d) sheets of paper
29. 29.True or false: a zigzag-folded sheet makes a strong bridge. (a) True (b) False
30. 30.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a bamboo pole (c) a hollow bird bone (d) a temple dome
31. 31.True or false: a U-shaped channel makes a strong bridge. (a) True (b) False
32. 32.True or false: one flat sheet makes a strong bridge. (a) False (b) True
33. 33.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) coins (c) two books (d) a ruler
35. 35.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) a battery cell (c) a mirror (d) a magnet
36. 36.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) coins (d) a mirror
37. 37.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a zigzag-folded sheet (c) paper with folded edges (d) a wet flat sheet
38. 38.True or false: paper with folded edges makes a strong bridge. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) a U-shaped channel (b) rolled paper tubes (c) a flat tissue (d) a zigzag-folded sheet
40. 40.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge

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