Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 295 · 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.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
2. 2.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
3. 3.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) a ruler (c) sheets of paper (d) coins
4. 4.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a zigzag-folded sheet (c) paper with folded edges (d) one flat sheet
5. 5.True or false: one flat sheet makes a strong bridge. (a) False (b) True
6. 6.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) its curved arch shape (c) it is very hot (d) it is magnetic
7. 7.True or false: an old stone bridge gets its strength from a tube shape. (a) True (b) False
8. 8.True or false: an eggshell gets its strength from a tube shape. (a) False (b) True
9. 9.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) False (b) True
10. 10.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
11. 11.🏗️ Where does a temple dome get its strength from? (a) arches and domes (b) tubes (c) triangles
12. 12.🔍 Which is the odd one out? (a) one flat sheet (b) a zigzag-folded sheet (c) a flat tissue (d) a wet flat sheet
13. 13.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we keep it the same (c) we change it
14. 14.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) high and wobbly (d) low and steady
15. 15.True or false: a hollow bird bone gets its strength from a tube shape. (a) False (b) True
16. 16.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
17. 17.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
18. 18.🔍 Which is the odd one out? (a) a torn flat sheet (b) paper with folded edges (c) a wet flat sheet (d) a flat tissue
19. 19.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it gets stronger (c) it sags and falls (d) it turns to card
20. 20.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
21. 21.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
22. 22.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
23. 23.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
24. 24.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) rolled paper tubes (c) a zigzag-folded sheet (d) a wet flat sheet
25. 25.🔍 Which is the odd one out? (a) a U-shaped channel (b) one flat sheet (c) rolled paper tubes (d) a zigzag-folded sheet
26. 26.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
27. 27.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) tubes (c) arches and domes
28. 28.🧺 Which of these is not needed for the paper bridge? (a) a magnet (b) a ruler (c) sheets of paper (d) coins
29. 29.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
30. 30.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) triangles (c) arches and domes
31. 31.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) False (b) True
32. 32.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of paper (b) the shape of the paper (c) coins it holds
33. 33.🧺 Which of these is needed for the paper bridge? (a) coins (b) yeast (c) a magnet (d) a balloon
34. 34.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we change it (c) we keep it the same
35. 35.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the square (c) the triangle (d) the heart shape
36. 36.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a torn flat sheet (c) a flat tissue (d) paper with folded edges
37. 37.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a balloon (c) turmeric powder (d) a ruler
38. 38.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) a round pillar (c) a bridge truss (d) an old stone bridge
39. 39.🔮 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
40. 40.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a battery cell (c) a mirror (d) two books

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