Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 473 · 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 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
2. 2.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the kind of coins (c) the shape of the paper (d) the gap between books
3. 3.🧺 Which of these is not needed for the paper bridge? (a) a mirror (b) sheets of paper (c) two books (d) a ruler
4. 4.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
5. 5.True or false: two books is needed for the paper bridge. (a) False (b) True
6. 6.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
7. 7.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) an electric tower (c) a temple dome (d) an old stone bridge
8. 8.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a wet flat sheet (c) a flat tissue (d) a U-shaped channel
9. 9.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) an old stone bridge (c) a roof frame (d) a hollow bird bone
10. 10.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it floats up (c) it sags and falls (d) it turns to card
11. 11.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) a round pillar (c) a temple dome (d) a bridge truss
12. 12.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
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.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) upward (c) not at all (d) less
15. 15.True or false: a magnet is not needed for the paper bridge. (a) True (b) False
16. 16.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a mirror (c) a balloon (d) a ruler
17. 17.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
18. 18.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a ruler (d) a mirror
20. 20.True or false: yeast is not needed for the paper bridge. (a) False (b) True
21. 21.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a magnet (c) two books (d) a battery cell
22. 22.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is made of steel (c) it is magnetic (d) it is very hot
23. 23.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) arches and domes (c) tubes
24. 24.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
25. 25.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) zero (c) the same number of (d) fewer
26. 26.🔍 Which is the odd one out? (a) a U-shaped channel (b) a zigzag-folded sheet (c) a flat tissue (d) paper with folded edges
27. 27.True or false: a flat tissue makes a weak bridge. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) a U-shaped channel (b) paper with folded edges (c) rolled paper tubes (d) one flat sheet
29. 29.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) skip washing (c) rub your eyes (d) lick your fingers
30. 30.🏗️ Where does an eggshell get its strength from? (a) tubes (b) triangles (c) arches and domes
31. 31.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we change it (c) we keep it the same
32. 32.True or false: an electric tower gets its strength from a tube shape. (a) False (b) True
33. 33.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds add glue (c) folds make it stiffer (d) folds make it wet
34. 34.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
35. 35.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) only water (c) the same coins (d) fewer coins
36. 36.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
37. 37.🧺 Which of these is needed for the paper bridge? (a) yeast (b) coins (c) turmeric powder (d) a mirror
38. 38.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) a balloon (d) a ruler
39. 39.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) a torn flat sheet (d) paper with folded edges
40. 40.True or false: coins is not needed for the paper bridge. (a) False (b) True

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