Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 57 · 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) more (d) less
2. 2.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
3. 3.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we measure it (c) we keep it the same
4. 4.True or false: yeast is needed for the paper bridge. (a) False (b) True
5. 5.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
6. 6.⚖️ 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 paper (d) the gap between books
7. 7.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
8. 8.True or false: a balloon is needed for the paper bridge. (a) False (b) True
9. 9.🏗️ Where does a bridge truss get its strength from? (a) triangles (b) arches and domes (c) tubes
10. 10.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
11. 11.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
12. 12.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) low and steady (c) on a stool edge (d) on top of a pet
13. 13.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
14. 14.True or false: one flat sheet makes a strong bridge. (a) True (b) False
15. 15.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
16. 16.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) the same coins (c) more coins (d) only water
17. 17.⚖️ 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
18. 18.🔍 Which is the odd one out? (a) one flat sheet (b) a U-shaped channel (c) a torn flat sheet (d) a wet flat sheet
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) two books (c) sheets of paper (d) a ruler
20. 20.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
21. 21.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) paper with folded edges (c) a torn flat sheet (d) a U-shaped channel
22. 22.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a flat tissue (c) one flat sheet (d) a wet flat sheet
23. 23.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) its curved arch shape (c) it is very hot (d) it is magnetic
24. 24.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) coins (d) yeast
25. 25.True or false: a flat tissue makes a strong bridge. (a) False (b) True
26. 26.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) a mirror (c) a battery cell (d) a magnet
27. 27.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the shape of the paper (b) where coins are placed (c) the kind of paper (d) the gap between books
28. 28.⚖️ 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
29. 29.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) the same number of (c) fewer (d) more
30. 30.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
31. 31.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) False (b) True
32. 32.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) wash your hands (c) lick your fingers (d) rub your eyes
33. 33.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) rolled paper tubes (c) a U-shaped channel (d) a zigzag-folded sheet
34. 34.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
35. 35.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
36. 36.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
37. 37.True or false: an electric tower gets its strength from a tube shape. (a) True (b) False
38. 38.🏗️ Where does a round pillar get its strength from? (a) tubes (b) triangles (c) arches and domes
39. 39.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) one flat sheet (d) paper with folded edges
40. 40.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False

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