Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 207 · 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 make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) the same number of (d) more
2. 2.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
3. 3.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
4. 4.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) fewer coins (c) more coins (d) only water
5. 5.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) two books (d) a magnet
6. 6.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
7. 7.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) a torn flat sheet (d) a U-shaped channel
8. 8.🔍 Which is the odd one out? (a) a wet flat sheet (b) a torn flat sheet (c) a U-shaped channel (d) one flat sheet
9. 9.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) the shape of the paper (c) coins it holds (d) the gap between books
10. 10.True or false: a bridge truss gets its strength from arches or domes. (a) False (b) True
11. 11.🏗️ Which of these gets its strength from triangles? (a) a roof frame (b) an eggshell (c) a round pillar (d) a hollow bird bone
12. 12.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) upward (c) not at all (d) more
13. 13.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
14. 14.⚖️ 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
15. 15.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) coins (c) a magnet (d) a battery cell
16. 16.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
17. 17.True or false: an electric tower gets its strength from arches or domes. (a) False (b) True
18. 18.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
19. 19.⚖️ 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
20. 20.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the heart shape (c) the star (d) the triangle
21. 21.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a bridge truss (c) an old stone bridge (d) a hollow bird bone
22. 22.True or false: coins is needed for the paper bridge. (a) True (b) False
23. 23.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
24. 24.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) a roof frame (c) an electric tower (d) an old stone bridge
25. 25.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
26. 26.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) high and wobbly (c) on top of a pet (d) low and steady
27. 27.🥚 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 made of steel (d) it is very hot
28. 28.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) triangles (c) tubes
29. 29.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) rolled paper tubes (c) a wet flat sheet (d) a zigzag-folded sheet
30. 30.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
31. 31.True or false: a ruler is not needed for the paper bridge. (a) True (b) False
32. 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) yeast (d) two books
33. 33.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) yeast (c) two books (d) coins
34. 34.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) two books (c) a mirror (d) a magnet
35. 35.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a mirror (c) a magnet (d) sheets of paper
36. 36.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
37. 37.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) coins (c) sheets of paper (d) two books
38. 38.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the kind of paper (c) the gap between books (d) where coins are placed
39. 39.⚖️ 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
40. 40.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) tubes (c) arches and domes

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