Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 142 · 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.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it sags and falls (c) it turns to card (d) it gets stronger
2. 2.True or false: a magnet is needed for the paper bridge. (a) True (b) False
3. 3.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we keep it the same (b) we change it (c) we measure it
4. 4.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) low and steady (c) high and wobbly (d) on top of a pet
5. 5.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) fewer (d) more
6. 6.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
7. 7.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) only water (c) fewer coins (d) the same coins
8. 8.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
9. 9.⚖️ 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
10. 10.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a balloon (c) two books (d) turmeric powder
11. 11.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
12. 12.True or false: an eggshell gets its strength from arches or domes. (a) True (b) False
13. 13.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
14. 14.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) skip washing (c) wash your hands (d) rub your eyes
15. 15.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) True (b) False
16. 16.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) a battery cell (d) a ruler
17. 17.🥚 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
18. 18.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
19. 19.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
20. 20.🏗️ Where does an eggshell get its strength from? (a) tubes (b) triangles (c) arches and domes
21. 21.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) tubes (c) triangles
22. 22.⚖️ 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 change it (c) we measure it
23. 23.🔍 Which is the odd one out? (a) paper with folded edges (b) one flat sheet (c) rolled paper tubes (d) a zigzag-folded sheet
24. 24.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is kept the same. (a) True (b) False
25. 25.True or false: coins is not needed for the paper bridge. (a) False (b) True
26. 26.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) a magnet (d) a ruler
27. 27.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
28. 28.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) tubes (c) triangles
29. 29.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a balloon (c) two books (d) sheets of paper
30. 30.True or false: yeast is not needed for the paper bridge. (a) True (b) False
31. 31.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) the shape of the paper (c) coins it holds (d) the gap between books
32. 32.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
33. 33.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
34. 34.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
35. 35.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) turmeric powder (d) two books
36. 36.🔺 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 triangle (d) the star
37. 37.⚖️ 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 measure it (c) we change it
38. 38.🧺 Which of these is not needed for the paper bridge? (a) a balloon (b) two books (c) a ruler (d) coins
39. 39.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a magnet (c) a mirror (d) a ruler
40. 40.🔍 Which is the odd one out? (a) a torn flat sheet (b) rolled paper tubes (c) a U-shaped channel (d) a zigzag-folded sheet

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