Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 572 · 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.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) coins (d) a balloon
2. 2.⚖️ 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 gap between books
3. 3.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) sheets of paper (d) a magnet
4. 4.🔍 Which is the odd one out? (a) rolled paper tubes (b) one flat sheet (c) a wet flat sheet (d) a torn flat sheet
5. 5.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the heart shape (c) the square (d) the star
6. 6.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a mirror (c) coins (d) sheets of paper
7. 7.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) sheets of paper (c) yeast (d) a mirror
8. 8.True or false: an eggshell gets its strength from a tube shape. (a) True (b) False
9. 9.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
10. 10.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) True (b) False
11. 11.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds add glue (c) folds are magnetic (d) folds make it stiffer
12. 12.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we change it (c) we measure it
13. 13.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a bamboo pole (c) a bridge truss (d) an eggshell
14. 14.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it floats up (c) it turns to card (d) it sags and falls
15. 15.True or false: paper with folded edges makes a strong bridge. (a) True (b) False
16. 16.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False
17. 17.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) tubes (c) arches and domes
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) turmeric powder (c) two books (d) sheets of paper
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) yeast (d) sheets of paper
20. 20.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) low and steady (c) on top of a pet (d) high and wobbly
21. 21.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is magnetic (c) its curved arch shape (d) it is very hot
22. 22.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) the kind of coins
23. 23.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
24. 24.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) a battery cell (d) a ruler
25. 25.⚖️ 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
26. 26.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) False (b) True
27. 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) a ruler (c) two books (d) sheets of paper
28. 28.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
29. 29.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) the same number of (d) more
30. 30.⚖️ 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
31. 31.🔍 Which is the odd one out? (a) a U-shaped channel (b) a flat tissue (c) paper with folded edges (d) a zigzag-folded sheet
32. 32.🔍 Which is the odd one out? (a) a torn flat sheet (b) one flat sheet (c) paper with folded edges (d) a flat tissue
33. 33.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
34. 34.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) paper with folded edges (c) a flat tissue (d) one flat sheet
35. 35.🏗️ Where does an electric tower get its strength from? (a) tubes (b) arches and domes (c) triangles
36. 36.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
37. 37.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
38. 38.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
39. 39.True or false: a roof frame gets its strength from triangles. (a) True (b) False
40. 40.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) more (c) less (d) not at all

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