Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 421 · 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) a flat tissue (c) one flat sheet (d) a zigzag-folded sheet
2. 2.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
3. 3.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) a wet flat sheet (d) a U-shaped channel
4. 4.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) low and steady (c) on top of a pet (d) on a stool edge
5. 5.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
6. 6.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
7. 7.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a flat tissue (c) a zigzag-folded sheet (d) paper with folded edges
8. 8.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) sheets of paper (d) a magnet
9. 9.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is magnetic (c) its curved arch shape (d) it is very hot
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) a balloon (d) coins
11. 11.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we change it (c) we keep it the same
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 is the odd one out? (a) a U-shaped channel (b) rolled paper tubes (c) one flat sheet (d) paper with folded edges
14. 14.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) triangles (c) arches and domes
15. 15.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
16. 16.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) more (c) fewer (d) zero
17. 17.True or false: a roof frame gets its strength from a tube shape. (a) False (b) True
18. 18.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
19. 19.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a torn flat sheet (c) a flat tissue (d) paper with folded edges
20. 20.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
21. 21.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we change it (c) we measure it
22. 22.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) turmeric powder (c) two books (d) yeast
23. 23.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
24. 24.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) an eggshell (c) an electric tower (d) a round pillar
25. 25.True or false: a hollow bird bone gets its strength from arches or domes. (a) False (b) True
26. 26.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a round pillar (c) an eggshell (d) a bamboo pole
27. 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) yeast (c) coins (d) two books
28. 28.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) the kind of paper (c) the kind of coins (d) coins it holds
29. 29.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) rolled paper tubes (c) a torn flat sheet (d) one flat sheet
30. 30.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
31. 31.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we keep it the same (c) we measure it
32. 32.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) only water (d) fewer coins
33. 33.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
34. 34.⚖️ 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
35. 35.True or false: a ruler is needed for the paper bridge. (a) False (b) True
36. 36.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) wash your hands (c) rub your eyes (d) skip washing
37. 37.🔍 Which is the odd one out? (a) a torn flat sheet (b) a U-shaped channel (c) a flat tissue (d) a wet flat sheet
38. 38.🏗️ Where does an electric tower get its strength from? (a) triangles (b) arches and domes (c) tubes
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a battery cell (d) a ruler
40. 40.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge

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