Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 389 · 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? What do we do with “where coins are placed”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.True or false: a roof frame gets its strength from triangles. (a) True (b) False
3. 3.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we change it (c) we measure it
4. 4.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) yeast (c) a mirror (d) two books
5. 5.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we keep it the same (b) we measure it (c) we change it
6. 6.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) a bamboo pole (c) an electric tower (d) an eggshell
7. 7.🧺 Which of these is not needed for the paper bridge? (a) coins (b) two books (c) a magnet (d) sheets of paper
8. 8.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the kind of coins (c) the shape of the paper
9. 9.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) False (b) True
10. 10.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
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.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on a stool edge (c) high and wobbly (d) on top of a pet
13. 13.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a roof frame (c) a bridge truss (d) a round pillar
14. 14.🔍 Which is the odd one out? (a) a wet flat sheet (b) one flat sheet (c) a U-shaped channel (d) a torn flat sheet
15. 15.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) coins (d) turmeric powder
16. 16.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a flat tissue (c) paper with folded edges (d) a zigzag-folded sheet
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) False (b) True
18. 18.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
19. 19.True or false: a ruler is not needed for the paper bridge. (a) True (b) False
20. 20.🌉 Which of these makes a strong bridge? (a) rolled paper tubes (b) a flat tissue (c) a wet flat sheet (d) one flat sheet
21. 21.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) False (b) True
22. 22.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) True (b) False
23. 23.True or false: a magnet is not needed for the paper bridge. (a) True (b) False
24. 24.🏗️ Where does an old stone bridge get its strength from? (a) tubes (b) triangles (c) arches and domes
25. 25.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a balloon (c) two books (d) coins
26. 26.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) rolled paper tubes (c) a zigzag-folded sheet (d) one flat sheet
27. 27.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a battery cell (c) two books (d) a ruler
28. 28.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) more (d) fewer
29. 29.True or false: coins is not needed for the paper bridge. (a) True (b) False
30. 30.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) its curved arch shape (c) it is magnetic (d) it is made of steel
31. 31.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
32. 32.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a wet flat sheet (c) a U-shaped channel (d) a torn flat sheet
33. 33.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
34. 34.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) one flat sheet (c) a wet flat sheet (d) a zigzag-folded sheet
35. 35.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) arches and domes (c) tubes
36. 36.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) two books (d) a mirror
37. 37.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
38. 38.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) an electric tower (c) an eggshell (d) a bamboo pole
39. 39.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) upward (c) less (d) not at all
40. 40.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge

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