Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 507 · 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 coins for the paper bridge? (a) not needed (b) needed
2. 2.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds are magnetic (c) folds make it wet (d) folds add glue
3. 3.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
4. 4.⚖️ 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
5. 5.True or false: a temple dome gets its strength from a tube shape. (a) False (b) True
6. 6.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) a battery cell (d) sheets of paper
7. 7.True or false: a roof frame gets its strength from triangles. (a) True (b) False
8. 8.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
9. 9.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) rolled paper tubes (c) one flat sheet (d) paper with folded edges
10. 10.⚖️ 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
11. 11.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) fewer coins (d) only water
12. 12.🔍 Which is the odd one out? (a) one flat sheet (b) a U-shaped channel (c) rolled paper tubes (d) paper with folded edges
13. 13.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) the kind of paper (c) the gap between books (d) the shape of the paper
14. 14.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) skip washing (c) rub your eyes (d) lick your fingers
15. 15.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) a bamboo pole (c) a roof frame (d) an electric tower
16. 16.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
17. 17.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it turns to card (c) it floats up (d) it gets stronger
18. 18.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
19. 19.🌉 Which of these makes a strong bridge? (a) rolled paper tubes (b) a flat tissue (c) a torn flat sheet (d) one flat sheet
20. 20.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
21. 21.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
22. 22.True or false: a U-shaped channel makes a strong bridge. (a) True (b) False
23. 23.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) paper with folded edges (c) a U-shaped channel (d) a flat tissue
24. 24.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
25. 25.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) less (c) not at all (d) more
26. 26.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we keep it the same (c) we measure it
27. 27.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) tubes (c) triangles
28. 28.True or false: two books is needed for the paper bridge. (a) False (b) True
29. 29.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we measure it (c) we keep it the same
30. 30.True or false: a ruler is needed for the paper bridge. (a) True (b) False
31. 31.True or false: two books is not needed for the paper bridge. (a) False (b) True
32. 32.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
33. 33.True or false: an electric tower gets its strength from arches or domes. (a) False (b) True
34. 34.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) a bamboo pole (c) a hollow bird bone (d) a temple dome
35. 35.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a ruler (c) a mirror (d) a battery cell
36. 36.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
37. 37.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
38. 38.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) the same number of (d) zero
39. 39.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) on a stool edge (c) low and steady (d) high and wobbly
40. 40.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge

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