Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 284 · 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: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) fewer coins (d) only water
2. 2.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) a wet flat sheet (d) a zigzag-folded sheet
3. 3.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
4. 4.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) more (d) the same number of
5. 5.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
6. 6.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
7. 7.🔍 Which is the odd one out? (a) paper with folded edges (b) one flat sheet (c) a flat tissue (d) a wet flat sheet
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) yeast (c) a ruler (d) two books
9. 9.True or false: an electric tower gets its strength from triangles. (a) True (b) False
10. 10.🧺 Which of these is needed for the paper bridge? (a) a ruler (b) a magnet (c) a balloon (d) turmeric powder
11. 11.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
12. 12.True or false: a ruler is needed for the paper bridge. (a) True (b) False
13. 13.🌉 Which of these makes a strong bridge? (a) paper with folded edges (b) a torn flat sheet (c) a flat tissue (d) a wet flat sheet
14. 14.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) the kind of paper
15. 15.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we change it (c) we keep it the same
16. 16.True or false: rolled paper tubes makes a strong bridge. (a) True (b) False
17. 17.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) the gap between books (c) the kind of paper (d) the shape of the paper
18. 18.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a torn flat sheet (d) a U-shaped channel
19. 19.🔍 Which is the odd one out? (a) a torn flat sheet (b) rolled paper tubes (c) a zigzag-folded sheet (d) a U-shaped channel
20. 20.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a balloon (c) sheets of paper (d) a magnet
21. 21.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we keep it the same (c) we measure it
22. 22.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
23. 23.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) coins (c) two books (d) a ruler
24. 24.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on top of a pet (c) high and wobbly (d) on a stool edge
25. 25.True or false: an electric tower gets its strength from a tube shape. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) one flat sheet (b) a wet flat sheet (c) a zigzag-folded sheet (d) a torn flat sheet
27. 27.True or false: an eggshell gets its strength from a tube shape. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) one flat sheet (b) a wet flat sheet (c) a U-shaped channel (d) a torn flat sheet
29. 29.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it floats up (c) it gets stronger (d) it turns to card
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) sheets of paper (d) a magnet
31. 31.⚖️ 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
32. 32.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
33. 33.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) not at all (c) less (d) more
34. 34.🔍 Which is the odd one out? (a) a U-shaped channel (b) a flat tissue (c) rolled paper tubes (d) a zigzag-folded sheet
35. 35.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) triangles (c) tubes
36. 36.🧺 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) two books
37. 37.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) a torn flat sheet (d) rolled paper tubes
38. 38.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
39. 39.🏗️ Where does a round pillar get its strength from? (a) triangles (b) tubes (c) arches and domes
40. 40.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) rub your eyes (c) wash your hands (d) lick your fingers

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