Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 548 · 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.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a ruler (d) a balloon
2. 2.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) wash your hands (d) skip washing
3. 3.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a torn flat sheet (c) paper with folded edges (d) a flat tissue
4. 4.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a U-shaped channel (c) a wet flat sheet (d) a zigzag-folded sheet
5. 5.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) paper with folded edges (c) one flat sheet (d) a U-shaped channel
6. 6.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
7. 7.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) two books (c) sheets of paper (d) a magnet
8. 8.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) where coins are placed (c) the kind of coins (d) the shape of the paper
9. 9.🛟 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
10. 10.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
11. 11.⚖️ 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
12. 12.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) a round pillar (c) an old stone bridge (d) a hollow bird bone
13. 13.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
14. 14.🔍 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 gets stronger (d) it floats up
15. 15.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) a zigzag-folded sheet (c) rolled paper tubes (d) a U-shaped channel
16. 16.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we keep it the same (b) we change it (c) we measure it
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) True (b) False
18. 18.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is made of steel (c) it is very hot (d) its curved arch shape
19. 19.🔍 Which is the odd one out? (a) one flat sheet (b) a wet flat sheet (c) paper with folded edges (d) a torn flat sheet
20. 20.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) True (b) False
21. 21.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
22. 22.⚖️ 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
23. 23.🏗️ Which of these gets its strength from arches or domes? (a) an eggshell (b) a bamboo pole (c) a bridge truss (d) a round pillar
24. 24.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
25. 25.True or false: two books is needed for the paper bridge. (a) True (b) False
26. 26.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
27. 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) a magnet (d) two books
28. 28.True or false: rolled paper tubes makes a strong bridge. (a) True (b) False
29. 29.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) one flat sheet (c) a zigzag-folded sheet (d) rolled paper tubes
30. 30.True or false: a wet flat sheet makes a weak bridge. (a) True (b) False
31. 31.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) not at all (c) more (d) upward
32. 32.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
33. 33.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we measure it (c) we keep it the same
34. 34.🔍 Which is the odd one out? (a) a torn flat sheet (b) a zigzag-folded sheet (c) one flat sheet (d) a flat tissue
35. 35.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
36. 36.⚖️ 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
37. 37.🔍 Which is the odd one out? (a) a U-shaped channel (b) a zigzag-folded sheet (c) a torn flat sheet (d) paper with folded edges
38. 38.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) triangles (c) tubes
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) two books (c) sheets of paper (d) coins
40. 40.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) coins it holds (c) the shape of the paper (d) the gap between books

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