Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 529 · 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 turns to card (b) it gets stronger (c) it sags and falls (d) it floats up
2. 2.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) more coins (c) fewer coins (d) the same coins
3. 3.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
4. 4.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
5. 5.⚖️ 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
6. 6.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a U-shaped channel (c) a flat tissue (d) a wet flat sheet
7. 7.True or false: an eggshell gets its strength from arches or domes. (a) True (b) False
8. 8.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
9. 9.⚖️ 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 paper
10. 10.True or false: two books is needed for the paper bridge. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a wet flat sheet (c) one flat sheet (d) a torn flat sheet
12. 12.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) coins it holds (c) the kind of paper (d) the shape of the paper
13. 13.🔍 Which is the odd one out? (a) a torn flat sheet (b) one flat sheet (c) a flat tissue (d) a U-shaped channel
14. 14.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
15. 15.⚖️ 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 shape of the paper (d) the gap between books
16. 16.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) rolled paper tubes (d) a torn flat sheet
17. 17.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
18. 18.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
19. 19.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is very hot (c) its curved arch shape (d) it is made of steel
20. 20.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) one flat sheet (c) paper with folded edges (d) a wet flat sheet
21. 21.🧺 Which of these is not needed for the paper bridge? (a) two books (b) sheets of paper (c) a balloon (d) a ruler
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a magnet (c) sheets of paper (d) two books
23. 23.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
24. 24.True or false: a magnet is not needed for the paper bridge. (a) True (b) False
25. 25.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the star (c) the heart shape (d) the square
26. 26.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) a bridge truss (c) an electric tower (d) a temple dome
27. 27.🏗️ Where does a temple dome get its strength from? (a) triangles (b) arches and domes (c) tubes
28. 28.True or false: a balloon is not needed for the paper bridge. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) rolled paper tubes (b) a zigzag-folded sheet (c) paper with folded edges (d) one flat sheet
30. 30.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
31. 31.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on a stool edge (c) high and wobbly (d) on top of a pet
32. 32.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) upward (c) not at all (d) more
33. 33.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
34. 34.True or false: a battery cell is needed for the paper bridge. (a) False (b) True
35. 35.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
36. 36.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) a zigzag-folded sheet (c) a U-shaped channel (d) paper with folded edges
37. 37.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a balloon (c) coins (d) two books
38. 38.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) True (b) False
40. 40.True or false: rolled paper tubes makes a weak bridge. (a) True (b) False

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