Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 704 · 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.🧺 Which of these is not needed for the paper bridge? (a) a mirror (b) coins (c) sheets of paper (d) two books
2. 2.⚖️ 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
3. 3.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
4. 4.🏗️ Where does a round pillar get its strength from? (a) tubes (b) arches and domes (c) triangles
5. 5.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a battery cell (c) coins (d) two books
6. 6.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
7. 7.🌉 Which of these makes a strong bridge? (a) paper with folded edges (b) a wet flat sheet (c) one flat sheet (d) a flat tissue
8. 8.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a torn flat sheet (c) a U-shaped channel (d) rolled paper tubes
9. 9.🧺 Which of these is not needed for the paper bridge? (a) turmeric powder (b) two books (c) a ruler (d) sheets of paper
10. 10.True or false: a round pillar gets its strength from arches or domes. (a) True (b) False
11. 11.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a magnet (c) a mirror (d) a ruler
12. 12.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) the same number of (d) more
13. 13.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a zigzag-folded sheet (c) rolled paper tubes (d) a wet flat sheet
14. 14.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
15. 15.🥚 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 magnetic (d) it is very hot
16. 16.True or false: a bamboo pole gets its strength from arches or domes. (a) True (b) False
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (a) False (b) True
18. 18.True or false: a balloon is not needed for the paper bridge. (a) True (b) False
19. 19.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a magnet (c) coins (d) two books
21. 21.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) two books (d) a balloon
22. 22.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) skip washing (c) wash your hands (d) rub your eyes
23. 23.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is the one thing we change. (a) False (b) True
24. 24.🏗️ Which of these gets its strength from a tube shape? (a) a round pillar (b) an eggshell (c) an electric tower (d) a bridge truss
25. 25.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) False (b) True
26. 26.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
27. 27.🧺 Which of these is needed for the paper bridge? (a) two books (b) yeast (c) a mirror (d) a balloon
28. 28.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) coins (d) yeast
29. 29.🔍 Which is the odd one out? (a) one flat sheet (b) rolled paper tubes (c) a zigzag-folded sheet (d) a U-shaped channel
30. 30.🏗️ Where does a roof frame get its strength from? (a) tubes (b) arches and domes (c) triangles
31. 31.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) not at all (c) less (d) upward
32. 32.True or false: a magnet is not needed for the paper bridge. (a) True (b) False
33. 33.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) only water (c) fewer coins (d) the same coins
34. 34.🔍 Which is the odd one out? (a) a wet flat sheet (b) paper with folded edges (c) rolled paper tubes (d) a zigzag-folded sheet
35. 35.🏗️ Where does a temple dome get its strength from? (a) tubes (b) arches and domes (c) triangles
36. 36.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
37. 37.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a mirror (c) a balloon (d) sheets of paper
38. 38.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
39. 39.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the triangle (c) the square (d) the star
40. 40.True or false: a bamboo pole gets its strength from a tube shape. (a) True (b) False

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