Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 430 · 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.⚖️ 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
2. 2.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it turns to card (c) it sags and falls (d) it floats up
3. 3.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
4. 4.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
5. 5.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds are magnetic (c) folds make it wet (d) folds add glue
6. 6.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a magnet (c) sheets of paper (d) two books
7. 7.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
8. 8.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) on top of a pet (d) low and steady
9. 9.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a U-shaped channel (d) a torn flat sheet
10. 10.🔍 Which is the odd one out? (a) a wet flat sheet (b) a zigzag-folded sheet (c) a flat tissue (d) one flat sheet
11. 11.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) coins (d) yeast
12. 12.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
13. 13.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a ruler (c) sheets of paper (d) turmeric powder
14. 14.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we change it (c) we keep it the same
15. 15.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) an old stone bridge (c) a bridge truss (d) a round pillar
16. 16.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a magnet (c) two books (d) a battery cell
17. 17.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is magnetic (c) it is made of steel (d) its curved arch shape
18. 18.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
19. 19.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
20. 20.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) False (b) True
21. 21.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a ruler (c) two books (d) a mirror
22. 22.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) a U-shaped channel (c) paper with folded edges (d) rolled paper tubes
23. 23.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
24. 24.True or false: coins is not needed for the paper bridge. (a) False (b) True
25. 25.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) an electric tower (c) an old stone bridge (d) a bridge truss
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a battery cell (d) sheets of paper
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) True (b) False
28. 28.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) True (b) False
29. 29.🧺 Which of these is not needed for the paper bridge? (a) yeast (b) coins (c) sheets of paper (d) a ruler
30. 30.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a hollow bird bone (c) an eggshell (d) a round pillar
31. 31.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) the kind of paper
32. 32.🏗️ Where does an eggshell get its strength from? (a) tubes (b) arches and domes (c) triangles
33. 33.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) two books (d) a magnet
34. 34.🏗️ Where does a temple dome get its strength from? (a) tubes (b) arches and domes (c) triangles
35. 35.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
36. 36.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) fewer (c) zero (d) more
37. 37.True or false: a bamboo pole gets its strength from a tube shape. (a) True (b) False
38. 38.🧺 Which of these is needed for the paper bridge? (a) yeast (b) sheets of paper (c) a magnet (d) a balloon
39. 39.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) an old stone bridge (c) a round pillar (d) an eggshell
40. 40.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) the shape of the paper (c) where coins are placed (d) coins it holds

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