Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 175 · 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.🔍 Which is the odd one out? (a) a wet flat sheet (b) rolled paper tubes (c) a torn flat sheet (d) a flat tissue
2. 2.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
3. 3.True or false: an old stone bridge gets its strength from a tube shape. (a) True (b) False
4. 4.⚖️ 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 coins (c) coins it holds
5. 5.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
6. 6.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) a mirror (d) coins
7. 7.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a zigzag-folded sheet (c) paper with folded edges (d) one flat sheet
8. 8.🛟 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
9. 9.🔍 Which is the odd one out? (a) one flat sheet (b) a torn flat sheet (c) a flat tissue (d) paper with folded edges
10. 10.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
11. 11.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) an old stone bridge (c) an eggshell (d) a round pillar
12. 12.🔍 Which is the odd one out? (a) a torn flat sheet (b) a wet flat sheet (c) a U-shaped channel (d) one flat sheet
13. 13.🔍 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
14. 14.True or false: an electric tower gets its strength from arches or domes. (a) False (b) True
15. 15.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a wet flat sheet (c) a U-shaped channel (d) one flat sheet
16. 16.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
17. 17.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is magnetic (c) its curved arch shape (d) it is made of steel
18. 18.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) paper with folded edges (c) a flat tissue (d) one flat sheet
19. 19.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a flat tissue (c) one flat sheet (d) rolled paper tubes
20. 20.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
21. 21.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) triangles (c) tubes
22. 22.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
23. 23.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) coins it holds (c) the kind of coins (d) the gap between books
24. 24.⚖️ 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
25. 25.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) arches and domes (c) tubes
26. 26.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we measure it (c) we keep it the same
27. 27.True or false: a bamboo pole gets its strength from arches or domes. (a) True (b) False
28. 28.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) less (c) more (d) upward
29. 29.🛟 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
30. 30.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
31. 31.True or false: one flat sheet makes a strong bridge. (a) False (b) True
32. 32.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) True (b) False
33. 33.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the gap between books (b) coins it holds (c) the shape of the paper
34. 34.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) arches and domes (c) triangles
35. 35.True or false: a battery cell is needed for the paper bridge. (a) True (b) False
36. 36.True or false: a round pillar gets its strength from a tube shape. (a) True (b) False
37. 37.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) yeast (d) sheets of paper
38. 38.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
39. 39.True or false: an eggshell gets its strength from a tube shape. (a) True (b) False
40. 40.🏗️ Where does an eggshell get its strength from? (a) tubes (b) triangles (c) arches and domes

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