Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 62 · 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 put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) not at all (c) less (d) more
2. 2.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
3. 3.⚖️ 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 gap between books (c) the shape of the paper (d) the kind of coins
4. 4.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) high and wobbly (c) low and steady (d) on a stool edge
5. 5.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) the same number of (c) fewer (d) more
6. 6.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
7. 7.🧺 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 balloon
8. 8.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
9. 9.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) a battery cell (d) coins
10. 10.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) more coins (c) fewer coins (d) the same coins
11. 11.🔍 Which is the odd one out? (a) paper with folded edges (b) a U-shaped channel (c) one flat sheet (d) rolled paper tubes
12. 12.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we keep it the same (b) we change it (c) we measure it
13. 13.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) a roof frame (c) an electric tower (d) a temple dome
14. 14.True or false: two books is not needed for the paper bridge. (a) True (b) False
15. 15.True or false: a bridge truss gets its strength from a tube shape. (a) True (b) False
16. 16.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) lick your fingers (d) wash your hands
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) False (b) True
18. 18.🔍 Which is the odd one out? (a) a torn flat sheet (b) a zigzag-folded sheet (c) a flat tissue (d) one flat sheet
19. 19.🏗️ Where does a temple dome get its strength from? (a) tubes (b) triangles (c) arches and domes
20. 20.🔍 Which is the odd one out? (a) one flat sheet (b) a torn flat sheet (c) rolled paper tubes (d) a wet flat sheet
21. 21.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
22. 22.🧺 Which of these is not needed for the paper bridge? (a) a mirror (b) a ruler (c) two books (d) coins
23. 23.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
24. 24.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
25. 25.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a magnet (c) two books (d) coins
26. 26.⚖️ 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
27. 27.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a magnet (c) a battery cell (d) two books
28. 28.🏗️ Where does a round pillar get its strength from? (a) tubes (b) arches and domes (c) triangles
29. 29.⚖️ 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 measure it (c) we keep it the same
30. 30.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we change it (c) we measure it
31. 31.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) coins it holds (c) the kind of coins (d) the shape of the paper
32. 32.🏗️ Where does an eggshell get its strength from? (a) tubes (b) triangles (c) arches and domes
33. 33.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a wet flat sheet (c) a U-shaped channel (d) rolled paper tubes
34. 34.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
35. 35.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it turns to card (c) it sags and falls (d) it floats up
36. 36.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
37. 37.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) paper with folded edges (c) a wet flat sheet (d) a flat tissue
38. 38.🔍 Which is the odd one out? (a) a U-shaped channel (b) a wet flat sheet (c) a torn flat sheet (d) one flat sheet
39. 39.True or false: paper with folded edges makes a weak bridge. (a) True (b) False
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) yeast (c) sheets of paper (d) two books

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