Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 256 · 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.🧺 Which of these is not needed for the paper bridge? (a) a balloon (b) two books (c) coins (d) sheets of paper
3. 3.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) an old stone bridge (c) an eggshell (d) a hollow bird bone
4. 4.⚖️ 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
5. 5.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
6. 6.True or false: a flat tissue makes a weak bridge. (a) False (b) True
7. 7.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) rub your eyes (c) lick your fingers (d) wash your hands
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) a battery cell (d) a ruler
9. 9.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
10. 10.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) low and steady (c) on top of a pet (d) high and wobbly
11. 11.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
12. 12.True or false: a round pillar gets its strength from a tube shape. (a) False (b) True
13. 13.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
14. 14.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) tubes (c) triangles
15. 15.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a ruler (c) turmeric powder (d) a mirror
16. 16.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a torn flat sheet (c) a flat tissue (d) rolled paper tubes
17. 17.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the kind of coins (c) the shape of the paper (d) where coins are placed
18. 18.True or false: coins is needed for the paper bridge. (a) False (b) True
19. 19.🧺 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) a ruler
20. 20.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
21. 21.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a balloon (c) coins (d) sheets of paper
23. 23.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
24. 24.🧺 Which of these is not needed for the paper bridge? (a) turmeric powder (b) two books (c) sheets of paper (d) a ruler
25. 25.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
26. 26.🌉 Which of these makes a weak bridge? (a) a torn flat sheet (b) a U-shaped channel (c) rolled paper tubes (d) a zigzag-folded sheet
27. 27.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) fewer coins (c) more coins (d) the same coins
28. 28.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) tubes (c) triangles
29. 29.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) the same number of (d) more
30. 30.⚖️ 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 shape of the paper (d) where coins are placed
31. 31.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a flat tissue (c) a zigzag-folded sheet (d) rolled paper tubes
32. 32.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
33. 33.🔍 Which is the odd one out? (a) a flat tissue (b) a U-shaped channel (c) paper with folded edges (d) a zigzag-folded sheet
34. 34.🔮 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
35. 35.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
36. 36.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it floats up (c) it sags and falls (d) it turns to card
37. 37.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
38. 38.🏗️ Where does an eggshell get its strength from? (a) triangles (b) tubes (c) arches and domes
39. 39.True or false: an electric tower gets its strength from arches or domes. (a) False (b) True
40. 40.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) True (b) False

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