Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 129 · 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.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
2. 2.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a balloon (c) two books (d) coins
3. 3.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) rolled paper tubes (c) a wet flat sheet (d) a flat tissue
4. 4.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the gap between books (c) the shape of the paper (d) the kind of paper
5. 5.True or false: a zigzag-folded sheet makes a strong bridge. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) a U-shaped channel (b) a torn flat sheet (c) a flat tissue (d) one flat sheet
7. 7.⚖️ 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
8. 8.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) high and wobbly (d) low and steady
9. 9.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) yeast (c) coins (d) two books
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) a mirror (d) coins
11. 11.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) two books (c) a balloon (d) a mirror
12. 12.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
13. 13.🧺 Which of these is not needed for the paper bridge? (a) coins (b) yeast (c) sheets of paper (d) a ruler
14. 14.🛟 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
15. 15.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) triangles (c) arches and domes
16. 16.True or false: an electric tower gets its strength from arches or domes. (a) False (b) True
17. 17.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) the same number of (d) more
18. 18.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) the same coins (c) more coins (d) only water
19. 19.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds add glue (c) folds make it stiffer (d) folds are magnetic
20. 20.🔍 Which is the odd one out? (a) a wet flat sheet (b) one flat sheet (c) a torn flat sheet (d) rolled paper tubes
21. 21.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it sags and falls (c) it turns to card (d) it gets stronger
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) a ruler (d) a magnet
23. 23.True or false: a ruler is needed for the paper bridge. (a) False (b) True
24. 24.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) an electric tower (c) a round pillar (d) an eggshell
25. 25.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we measure it (c) we keep it the same
26. 26.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a magnet (c) coins (d) two books
27. 27.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
28. 28.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a zigzag-folded sheet (d) a torn flat sheet
29. 29.True or false: a bamboo pole gets its strength from triangles. (a) False (b) True
30. 30.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
31. 31.🔍 Which is the odd one out? (a) paper with folded edges (b) a torn flat sheet (c) a wet flat sheet (d) one flat sheet
32. 32.⚖️ 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
33. 33.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
34. 34.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
35. 35.True or false: two books is needed for the paper bridge. (a) True (b) False
36. 36.⚖️ 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
37. 37.🧺 Which of these is needed for the paper bridge? (a) yeast (b) turmeric powder (c) a mirror (d) a ruler
38. 38.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
39. 39.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) where coins are placed (c) the kind of paper (d) the shape of the paper
40. 40.🌉 Which of these makes a strong bridge? (a) a U-shaped channel (b) a torn flat sheet (c) a flat tissue (d) one flat sheet

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