Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 574 · 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 makes a strong bridge? (a) a wet flat sheet (b) a torn flat sheet (c) a U-shaped channel (d) a flat tissue
2. 2.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) a hollow bird bone (c) an old stone bridge (d) a bridge truss
3. 3.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) paper with folded edges (c) a U-shaped channel (d) a torn flat sheet
4. 4.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) fewer coins (c) the same coins (d) more coins
5. 5.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) more (c) less (d) upward
6. 6.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) False (b) True
7. 7.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) a ruler (c) sheets of paper (d) two books
8. 8.🏗️ Where does a temple dome get its strength from? (a) arches and domes (b) tubes (c) triangles
9. 9.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) skip washing (d) wash your hands
10. 10.⚖️ 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
11. 11.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
12. 12.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is made of steel (c) its curved arch shape (d) it is magnetic
13. 13.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we keep it the same (b) we measure it (c) we change it
14. 14.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) tubes (c) triangles
15. 15.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a flat tissue (c) one flat sheet (d) paper with folded edges
16. 16.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
17. 17.🧺 Which of these is needed for the paper bridge? (a) a ruler (b) a battery cell (c) a magnet (d) turmeric powder
18. 18.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a torn flat sheet (d) rolled paper tubes
19. 19.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
20. 20.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the heart shape (c) the square (d) the triangle
21. 21.🏗️ Where does a round pillar get its strength from? (a) triangles (b) arches and domes (c) tubes
22. 22.🔍 Which is the odd one out? (a) a torn flat sheet (b) paper with folded edges (c) a zigzag-folded sheet (d) a U-shaped channel
23. 23.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the gap between books (c) coins it holds
24. 24.True or false: a magnet is needed for the paper bridge. (a) False (b) True
25. 25.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) a hollow bird bone (c) a bridge truss (d) a roof frame
26. 26.🔍 Which is the odd one out? (a) paper with folded edges (b) a zigzag-folded sheet (c) one flat sheet (d) a U-shaped channel
27. 27.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
28. 28.🏗️ Where does an electric tower get its strength from? (a) triangles (b) tubes (c) arches and domes
29. 29.True or false: a temple dome gets its strength from a tube shape. (a) True (b) False
30. 30.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) two books (c) yeast (d) a mirror
31. 31.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) turmeric powder (c) coins (d) a magnet
32. 32.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) more (d) fewer
33. 33.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) a battery cell (d) coins
34. 34.True or false: an old stone bridge gets its strength from arches or domes. (a) False (b) True
35. 35.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
36. 36.True or false: a round pillar gets its strength from a tube shape. (a) True (b) False
37. 37.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we measure it (c) we keep it the same
38. 38.True or false: an electric tower gets its strength from triangles. (a) True (b) False
39. 39.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
40. 40.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge

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