Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 300 · 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 heart shape (c) the star (d) the triangle
2. 2.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) its curved arch shape (c) it is made of steel (d) it is magnetic
3. 3.⚖️ 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
4. 4.True or false: a flat tissue makes a strong bridge. (a) True (b) False
5. 5.⚖️ 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 keep it the same (c) we change it
6. 6.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
7. 7.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
8. 8.True or false: two books is not needed for the paper bridge. (a) True (b) False
9. 9.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a bridge truss (c) a hollow bird bone (d) a bamboo pole
10. 10.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
11. 11.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
12. 12.🛟 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
13. 13.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) tubes (c) arches and domes
14. 14.🏗️ Which of these gets its strength from a tube shape? (a) a round pillar (b) a bridge truss (c) a temple dome (d) an eggshell
15. 15.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
16. 16.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) rolled paper tubes (c) a U-shaped channel (d) a zigzag-folded sheet
17. 17.True or false: turmeric powder is needed for the paper bridge. (a) True (b) False
18. 18.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) False (b) True
19. 19.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) not at all (c) upward (d) less
20. 20.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it turns to card (c) it gets stronger (d) it sags and falls
21. 21.True or false: one flat sheet makes a strong bridge. (a) True (b) False
22. 22.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the kind of paper (c) coins it holds
23. 23.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) the same number of (d) more
24. 24.⚖️ 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 shape of the paper (c) the kind of paper (d) the kind of coins
25. 25.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) a ruler (c) sheets of paper (d) two books
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a battery cell (c) sheets of paper (d) a ruler
27. 27.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
28. 28.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
29. 29.True or false: a roof frame gets its strength from arches or domes. (a) True (b) False
30. 30.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
31. 31.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a torn flat sheet (c) a flat tissue (d) paper with folded edges
32. 32.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds add glue (c) folds are magnetic (d) folds make it wet
33. 33.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a flat tissue (c) a wet flat sheet (d) a U-shaped channel
34. 34.True or false: two books is needed for the paper bridge. (a) True (b) False
35. 35.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) where coins are placed (c) the shape of the paper (d) coins it holds
36. 36.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a magnet (c) coins (d) a balloon
37. 37.True or false: one flat sheet makes a weak bridge. (a) True (b) False
38. 38.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
39. 39.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
40. 40.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed

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