Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 398 · 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.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the kind of paper (c) the shape of the paper
2. 2.⚖️ 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 kind of paper (c) the shape of the paper (d) the gap between books
3. 3.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it floats up (c) it sags and falls (d) it turns to card
4. 4.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a wet flat sheet (c) a zigzag-folded sheet (d) a U-shaped channel
5. 5.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) sheets of paper (c) coins (d) a ruler
6. 6.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) an eggshell (c) a bamboo pole (d) a round pillar
7. 7.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) fewer coins (d) only water
8. 8.🔍 Which is the odd one out? (a) a wet flat sheet (b) one flat sheet (c) a zigzag-folded sheet (d) a torn flat sheet
9. 9.True or false: an electric tower gets its strength from a tube shape. (a) False (b) True
10. 10.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
11. 11.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
12. 12.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) arches and domes (c) tubes
13. 13.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
14. 14.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) an old stone bridge (c) a roof frame (d) a round pillar
15. 15.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
16. 16.🔍 Which is the odd one out? (a) a flat tissue (b) a torn flat sheet (c) rolled paper tubes (d) one flat sheet
17. 17.True or false: a flat tissue makes a weak bridge. (a) False (b) True
18. 18.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
19. 19.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
20. 20.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
21. 21.🌉 Which of these makes a strong bridge? (a) paper with folded edges (b) a flat tissue (c) one flat sheet (d) a torn flat sheet
22. 22.🔍 Which is the odd one out? (a) rolled paper tubes (b) a torn flat sheet (c) paper with folded edges (d) a U-shaped channel
23. 23.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
24. 24.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) tubes (c) triangles
25. 25.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) lick your fingers (c) wash your hands (d) rub your eyes
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a magnet (c) coins (d) a ruler
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
28. 28.🏗️ Where does a roof frame get its strength from? (a) triangles (b) tubes (c) arches and domes
29. 29.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) a mirror (d) two books
30. 30.⚖️ 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
31. 31.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) triangles (c) tubes
32. 32.True or false: one flat sheet makes a weak bridge. (a) False (b) True
33. 33.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) False (b) True
34. 34.True or false: a bridge truss gets its strength from arches or domes. (a) True (b) False
35. 35.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) its curved arch shape (c) it is very hot (d) it is made of steel
36. 36.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
37. 37.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a flat tissue (c) paper with folded edges (d) a zigzag-folded sheet
38. 38.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False
39. 39.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
40. 40.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge

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