Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 790 · 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) one flat sheet (b) a torn flat sheet (c) paper with folded edges (d) a flat tissue
2. 2.🏗️ Where does a roof frame get its strength from? (a) triangles (b) arches and domes (c) tubes
3. 3.True or false: a bridge truss gets its strength from a tube shape. (a) True (b) False
4. 4.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) not at all (c) upward (d) more
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.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
7. 7.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) two books (c) sheets of paper (d) a ruler
8. 8.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
9. 9.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds make it stiffer (c) folds add glue (d) folds make it wet
10. 10.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
11. 11.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
12. 12.🏗️ Which of these gets its strength from triangles? (a) an electric tower (b) an eggshell (c) a temple dome (d) an old stone bridge
13. 13.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False
14. 14.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) on a stool edge (d) low and steady
15. 15.🧺 Which of these is not needed for the paper bridge? (a) a balloon (b) coins (c) sheets of paper (d) two books
16. 16.🌉 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
17. 17.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it floats up (c) it gets stronger (d) it turns to card
18. 18.True or false: a round pillar gets its strength from a tube shape. (a) True (b) False
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) sheets of paper (c) a ruler (d) coins
20. 20.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we measure it (c) we keep it the same
21. 21.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the star (c) the heart shape (d) the triangle
22. 22.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is magnetic (c) it is made of steel (d) it is very hot
23. 23.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) an electric tower (c) a roof frame (d) an old stone bridge
24. 24.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a mirror (c) a battery cell (d) sheets of paper
25. 25.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) coins (c) sheets of paper (d) a balloon
26. 26.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) lick your fingers (c) wash your hands (d) skip washing
27. 27.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
28. 28.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we change it (c) we keep it the same
29. 29.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a balloon (c) a battery cell (d) a ruler
30. 30.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) where coins are placed (c) the kind of paper (d) the shape of the paper
31. 31.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) one flat sheet (d) a U-shaped channel
32. 32.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
33. 33.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a bridge truss (c) a bamboo pole (d) a temple dome
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a mirror (d) coins
35. 35.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
36. 36.🏗️ Which of these gets its strength from arches or domes? (a) an eggshell (b) a roof frame (c) a round pillar (d) a bridge truss
37. 37.True or false: rolled paper tubes makes a strong bridge. (a) True (b) False
38. 38.True or false: an electric tower gets its strength from triangles. (a) False (b) True
39. 39.True or false: a hollow bird bone gets its strength from arches or domes. (a) True (b) False
40. 40.True or false: a bamboo pole gets its strength from a tube shape. (a) True (b) False

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