Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 98 · 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) where coins are placed (b) the shape of the paper (c) coins it holds
2. 2.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
3. 3.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) a bridge truss (c) a bamboo pole (d) a roof frame
4. 4.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) one flat sheet (c) paper with folded edges (d) a wet flat sheet
5. 5.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) False (b) True
6. 6.⚖️ 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 measure it (c) we change it
7. 7.🔍 Which is the odd one out? (a) a torn flat sheet (b) a wet flat sheet (c) a U-shaped channel (d) a flat tissue
8. 8.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
9. 9.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) the same number of (d) zero
10. 10.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a bridge truss (c) a hollow bird bone (d) an old stone bridge
11. 11.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) a mirror (d) sheets of paper
12. 12.⚖️ 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
13. 13.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a hollow bird bone (c) a bamboo pole (d) a roof frame
14. 14.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
15. 15.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a zigzag-folded sheet (c) rolled paper tubes (d) a wet flat sheet
16. 16.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a mirror (c) two books (d) a balloon
17. 17.🔍 Which is the odd one out? (a) rolled paper tubes (b) a U-shaped channel (c) a zigzag-folded sheet (d) one flat sheet
18. 18.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we change it (c) we keep it the same
19. 19.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
20. 20.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) triangles (c) tubes
21. 21.🏗️ Where does an electric tower get its strength from? (a) arches and domes (b) triangles (c) tubes
22. 22.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we keep it the same (c) we change it
23. 23.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
24. 24.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) fewer coins (c) more coins (d) the same coins
25. 25.True or false: an eggshell gets its strength from triangles. (a) True (b) False
26. 26.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) more (c) upward (d) not at all
27. 27.🥚 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
28. 28.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) rolled paper tubes (d) a flat tissue
29. 29.True or false: a torn flat sheet makes a weak bridge. (a) False (b) True
30. 30.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
31. 31.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) high and wobbly (c) low and steady (d) on top of a pet
32. 32.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
33. 33.🧺 Which of these is needed for the paper bridge? (a) coins (b) a magnet (c) a balloon (d) a battery cell
34. 34.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we change it (c) we keep it the same
35. 35.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we keep it the same (c) we measure it
36. 36.🌉 Which of these makes a strong bridge? (a) a U-shaped channel (b) one flat sheet (c) a wet flat sheet (d) a torn flat sheet
37. 37.True or false: a flat tissue makes a weak bridge. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a wet flat sheet (c) a U-shaped channel (d) rolled paper tubes
39. 39.🔍 Which is the odd one out? (a) rolled paper tubes (b) a torn flat sheet (c) one flat sheet (d) a flat tissue
40. 40.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a magnet (c) a ruler (d) sheets of paper

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