Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 279 · 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 weak bridge? (a) rolled paper tubes (b) a flat tissue (c) paper with folded edges (d) a zigzag-folded sheet
2. 2.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
3. 3.True or false: a bridge truss gets its strength from a tube shape. (a) False (b) True
4. 4.True or false: a zigzag-folded sheet makes a strong bridge. (a) True (b) False
5. 5.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) the shape of the paper (c) where coins are placed (d) coins it holds
6. 6.True or false: an electric tower gets its strength from arches or domes. (a) True (b) False
7. 7.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a zigzag-folded sheet (c) a flat tissue (d) one flat sheet
8. 8.🏗️ Which of these gets its strength from a tube shape? (a) a round pillar (b) an eggshell (c) an electric tower (d) an old stone bridge
9. 9.🏗️ Where does an eggshell get its strength from? (a) triangles (b) arches and domes (c) tubes
10. 10.🧺 Which of these is needed for the paper bridge? (a) a ruler (b) yeast (c) a magnet (d) a mirror
11. 11.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) tubes (c) triangles
12. 12.True or false: a battery cell is needed for the paper bridge. (a) False (b) True
13. 13.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of paper (b) coins it holds (c) the shape of the paper
14. 14.True or false: a roof frame gets its strength from a tube shape. (a) True (b) False
15. 15.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a battery cell (c) a magnet (d) sheets of paper
16. 16.True or false: a bridge truss gets its strength from arches or domes. (a) True (b) False
17. 17.True or false: one flat sheet makes a strong bridge. (a) True (b) False
18. 18.🛟 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
19. 19.True or false: sheets of paper is not needed for the paper bridge. (a) False (b) True
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) sheets of paper (c) coins (d) two books
21. 21.True or false: an electric tower gets its strength from triangles. (a) True (b) False
22. 22.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
23. 23.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
24. 24.⚖️ 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 change it (c) we measure it
25. 25.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) upward (c) less (d) not at all
26. 26.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is very hot (c) its curved arch shape (d) it is magnetic
27. 27.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it sags and falls (c) it floats up (d) it gets stronger
28. 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) two books (d) a balloon
29. 29.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) False (b) True
30. 30.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
31. 31.True or false: a mirror is needed for the paper bridge. (a) True (b) False
32. 32.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
33. 33.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of coins (b) coins it holds (c) the shape of the paper
34. 34.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
35. 35.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a wet flat sheet (c) paper with folded edges (d) a flat tissue
36. 36.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we keep it the same (c) we measure it
37. 37.True or false: a balloon is needed for the paper bridge. (a) True (b) False
38. 38.🔍 Which is the odd one out? (a) paper with folded edges (b) a wet flat sheet (c) rolled paper tubes (d) a zigzag-folded sheet
39. 39.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) arches and domes (c) triangles
40. 40.True or false: a hollow bird bone gets its strength from arches or domes. (a) True (b) False

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