Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 772 · 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.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) fewer (d) more
2. 2.True or false: a bamboo pole gets its strength from triangles. (a) True (b) False
3. 3.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
4. 4.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a magnet (c) a battery cell (d) sheets of paper
5. 5.🛟 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
6. 6.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) high and wobbly (c) on a stool edge (d) low and steady
7. 7.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a bridge truss (c) a hollow bird bone (d) a temple dome
8. 8.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a round pillar (c) a temple dome (d) a roof frame
9. 9.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a balloon (d) a ruler
11. 11.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
12. 12.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we measure it (c) we keep it the same
13. 13.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) sheets of paper (d) a magnet
14. 14.True or false: a flat tissue makes a strong bridge. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) a flat tissue (b) rolled paper tubes (c) a U-shaped channel (d) paper with folded edges
16. 16.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the kind of paper (c) coins it holds
17. 17.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) a round pillar (c) a temple dome (d) an electric tower
18. 18.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a torn flat sheet (c) a wet flat sheet (d) paper with folded edges
19. 19.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) paper with folded edges (c) a torn flat sheet (d) rolled paper tubes
20. 20.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a mirror (c) a ruler (d) sheets of paper
21. 21.True or false: an old stone bridge gets its strength from a tube shape. (a) False (b) True
22. 22.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
23. 23.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it sags and falls (c) it gets stronger (d) it floats up
24. 24.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) a zigzag-folded sheet (d) one flat sheet
25. 25.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
26. 26.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we measure it (c) we change it
27. 27.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) the kind of coins (c) the gap between books (d) the shape of the paper
28. 28.True or false: a roof frame gets its strength from triangles. (a) True (b) False
29. 29.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a zigzag-folded sheet (c) a wet flat sheet (d) a U-shaped channel
30. 30.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
31. 31.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) where coins are placed (c) coins it holds
32. 32.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) more coins (c) the same coins (d) fewer coins
33. 33.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) arches and domes (c) triangles
34. 34.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) yeast (c) a ruler (d) turmeric powder
35. 35.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
36. 36.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
37. 37.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) paper with folded edges (c) one flat sheet (d) a zigzag-folded sheet
38. 38.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) arches and domes (c) tubes
39. 39.🌉 Which of these makes a strong bridge? (a) rolled paper tubes (b) a flat tissue (c) a wet flat sheet (d) one flat sheet
40. 40.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we change it (c) we keep it the same

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