Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 516 · 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.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) not at all (c) less (d) more
2. 2.🧺 Which of these is not needed for the paper bridge? (a) two books (b) coins (c) a battery cell (d) sheets of paper
3. 3.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) arches and domes (c) tubes
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) two books (c) coins (d) a ruler
5. 5.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a battery cell (c) sheets of paper (d) coins
6. 6.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) the shape of the paper (c) the kind of coins (d) where coins are placed
7. 7.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) high and wobbly (c) low and steady (d) on a stool edge
8. 8.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the square (c) the star (d) the triangle
9. 9.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
10. 10.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
11. 11.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) paper with folded edges (c) rolled paper tubes (d) a wet flat sheet
12. 12.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
13. 13.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it floats up (c) it gets stronger (d) it turns to card
14. 14.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) more (c) zero (d) fewer
15. 15.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is the one thing we change. (a) True (b) False
16. 16.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
17. 17.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
18. 18.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a U-shaped channel (d) a flat tissue
19. 19.🧺 Which of these is not needed for the paper bridge? (a) a magnet (b) coins (c) a ruler (d) sheets of paper
20. 20.⚖️ 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 change it (c) we measure it
21. 21.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) a ruler (c) a balloon (d) a magnet
22. 22.True or false: a bridge truss gets its strength from arches or domes. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) paper with folded edges (b) rolled paper tubes (c) one flat sheet (d) a zigzag-folded sheet
24. 24.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
25. 25.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a mirror (c) two books (d) a ruler
26. 26.🌉 Which of these makes a strong bridge? (a) paper with folded edges (b) one flat sheet (c) a wet flat sheet (d) a flat tissue
27. 27.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) fewer coins (d) only water
28. 28.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
29. 29.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
30. 30.⚖️ 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 gap between books (d) the kind of paper
31. 31.True or false: an electric tower gets its strength from a tube shape. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) one flat sheet (b) a torn flat sheet (c) paper with folded edges (d) a flat tissue
33. 33.True or false: a temple dome gets its strength from arches or domes. (a) False (b) True
34. 34.True or false: an electric tower gets its strength from arches or domes. (a) False (b) True
35. 35.True or false: a balloon is not needed for the paper bridge. (a) True (b) False
36. 36.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) sheets of paper (c) a ruler (d) two books
37. 37.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
38. 38.True or false: yeast is not needed for the paper bridge. (a) True (b) False
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
40. 40.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) an old stone bridge (c) a bamboo pole (d) a temple dome

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