Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 633 · 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.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) turmeric powder (d) sheets of paper
2. 2.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) coins it holds (c) the shape of the paper (d) where coins are placed
3. 3.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
4. 4.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) an electric tower (c) a round pillar (d) a hollow bird bone
5. 5.True or false: yeast is needed for the paper bridge. (a) True (b) False
6. 6.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) rolled paper tubes (c) a flat tissue (d) paper with folded edges
7. 7.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) an old stone bridge (c) a hollow bird bone (d) a roof frame
8. 8.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
9. 9.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the triangle (c) the heart shape (d) the star
10. 10.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) the kind of paper (c) the shape of the paper (d) coins it holds
11. 11.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a magnet (d) two books
12. 12.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
13. 13.⚖️ 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
14. 14.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) lick your fingers (c) skip washing (d) rub your eyes
15. 15.True or false: coins is not needed for the paper bridge. (a) False (b) True
16. 16.⚖️ 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
17. 17.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) a U-shaped channel (c) a zigzag-folded sheet (d) rolled paper tubes
18. 18.⚖️ 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
19. 19.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) high and wobbly (c) on top of a pet (d) on a stool edge
20. 20.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) a bamboo pole (c) a bridge truss (d) an old stone bridge
21. 21.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is very hot (c) it is magnetic (d) it is made of steel
22. 22.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we keep it the same (c) we change it
23. 23.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
24. 24.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) False (b) True
25. 25.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
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.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
28. 28.🌉 Which of these makes a strong bridge? (a) paper with folded edges (b) a torn flat sheet (c) a wet flat sheet (d) a flat tissue
29. 29.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) fewer (c) zero (d) the same number of
30. 30.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
31. 31.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
32. 32.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) a wet flat sheet (d) rolled paper tubes
33. 33.True or false: an old stone bridge gets its strength from arches or domes. (a) False (b) True
34. 34.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds are magnetic (c) folds make it stiffer (d) folds make it wet
35. 35.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a battery cell (c) coins (d) two books
36. 36.🏗️ Where does a hollow bird bone get its strength from? (a) tubes (b) arches and domes (c) triangles
37. 37.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
38. 38.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
40. 40.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we measure it (c) we keep it the same

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