Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 759 · 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.True or false: a U-shaped channel makes a strong bridge. (a) True (b) False
2. 2.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we measure it (c) we keep it the same
3. 3.🔍 Which is the odd one out? (a) paper with folded edges (b) one flat sheet (c) a U-shaped channel (d) a zigzag-folded sheet
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) sheets of paper (d) a magnet
5. 5.🔍 Which is the odd one out? (a) a torn flat sheet (b) a U-shaped channel (c) a wet flat sheet (d) one flat sheet
6. 6.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) tubes (c) triangles
7. 7.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
8. 8.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) a bamboo pole (c) an electric tower (d) an old stone bridge
9. 9.🧺 Which of these is needed for the paper bridge? (a) coins (b) yeast (c) a battery cell (d) a mirror
10. 10.True or false: paper with folded edges makes a strong bridge. (a) True (b) False
11. 11.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) the same number of (c) fewer (d) more
12. 12.True or false: a mirror is needed for the paper bridge. (a) True (b) False
13. 13.True or false: an eggshell gets its strength from arches or domes. (a) True (b) False
14. 14.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we keep it the same (b) we measure it (c) we change it
15. 15.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
16. 16.🛟 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
17. 17.🧺 Which of these is needed for the paper bridge? (a) a ruler (b) a balloon (c) yeast (d) a battery cell
18. 18.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a U-shaped channel (c) one flat sheet (d) paper with folded edges
19. 19.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True
20. 20.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) coins it holds (c) the kind of paper (d) the shape of the paper
21. 21.True or false: a battery cell is needed for the paper bridge. (a) False (b) True
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) yeast (d) sheets of paper
23. 23.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) two books (c) yeast (d) a ruler
24. 24.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a hollow bird bone (c) a bridge truss (d) a round pillar
25. 25.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
26. 26.True or false: a battery cell is not needed for the paper bridge. (a) True (b) False
27. 27.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is very hot (c) it is made of steel (d) its curved arch shape
28. 28.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
29. 29.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a torn flat sheet (c) a zigzag-folded sheet (d) paper with folded edges
30. 30.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it wet (c) folds are magnetic (d) folds make it stiffer
31. 31.🌉 Which of these makes a strong bridge? (a) a zigzag-folded sheet (b) a flat tissue (c) a torn flat sheet (d) one flat sheet
32. 32.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) False (b) True
33. 33.🧺 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
34. 34.🔍 Which is the odd one out? (a) a U-shaped channel (b) a zigzag-folded sheet (c) paper with folded edges (d) a torn flat sheet
35. 35.⚖️ 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
36. 36.🧺 Which of these is needed for the paper bridge? (a) yeast (b) sheets of paper (c) turmeric powder (d) a battery cell
37. 37.🔍 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 gets stronger (d) it floats up
38. 38.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) sheets of paper (d) a mirror
39. 39.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
40. 40.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the triangle (c) the star (d) the heart shape

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