Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 97 · 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.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a flat tissue (c) a zigzag-folded sheet (d) rolled paper tubes
2. 2.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) high and wobbly (c) on a stool edge (d) on top of a pet
3. 3.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) more (c) less (d) not at all
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) coins (c) a ruler (d) sheets of paper
5. 5.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) lick your fingers (d) skip washing
6. 6.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
7. 7.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
8. 8.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) only water (c) more coins (d) fewer coins
9. 9.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) tubes (c) triangles
10. 10.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
11. 11.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
12. 12.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) an electric tower (c) an old stone bridge (d) a hollow bird bone
13. 13.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) arches and domes (c) triangles
14. 14.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
15. 15.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) more (c) zero (d) fewer
16. 16.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a torn flat sheet (c) a U-shaped channel (d) one flat sheet
17. 17.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) an electric tower (c) a bridge truss (d) an eggshell
18. 18.🧺 Which of these is needed for the paper bridge? (a) coins (b) a battery cell (c) a magnet (d) a mirror
19. 19.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
20. 20.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it wet (c) folds make it stiffer (d) folds add glue
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) two books (d) a balloon
22. 22.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) True (b) False
23. 23.True or false: a round pillar gets its strength from arches or domes. (a) True (b) False
24. 24.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the shape of the paper (b) the kind of paper (c) the gap between books (d) coins it holds
25. 25.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
26. 26.True or false: two books is needed for the paper bridge. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) rolled paper tubes (b) a flat tissue (c) a U-shaped channel (d) paper with folded edges
28. 28.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
29. 29.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we measure it (c) we keep it the same
30. 30.🔍 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 sags and falls (d) it gets stronger
31. 31.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) a wet flat sheet (d) paper with folded edges
32. 32.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) triangles (c) arches and domes
33. 33.🔍 Which is the odd one out? (a) paper with folded edges (b) a U-shaped channel (c) a torn flat sheet (d) a zigzag-folded sheet
34. 34.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
35. 35.True or false: an eggshell gets its strength from arches or domes. (a) True (b) False
36. 36.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
37. 37.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) True (b) False
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) turmeric powder (d) coins
39. 39.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
40. 40.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True

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