Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 170 · 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.True or false: yeast is needed for the paper bridge. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) paper with folded edges (b) a U-shaped channel (c) a wet flat sheet (d) rolled paper tubes
3. 3.True or false: coins is needed for the paper bridge. (a) False (b) True
4. 4.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) paper with folded edges (c) a wet flat sheet (d) a U-shaped channel
5. 5.🔍 Which is the odd one out? (a) paper with folded edges (b) a zigzag-folded sheet (c) a U-shaped channel (d) a flat tissue
6. 6.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
7. 7.True or false: a wet flat sheet makes a weak bridge. (a) True (b) False
8. 8.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a U-shaped channel (c) a torn flat sheet (d) one flat sheet
9. 9.True or false: a round pillar gets its strength from a tube shape. (a) True (b) False
10. 10.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it gets stronger (c) it turns to card (d) it sags and falls
11. 11.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) more (c) not at all (d) less
12. 12.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
13. 13.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of coins (b) coins it holds (c) the kind of paper (d) where coins are placed
14. 14.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
15. 15.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a zigzag-folded sheet (c) a torn flat sheet (d) one flat sheet
16. 16.True or false: two books is not needed for the paper bridge. (a) True (b) False
17. 17.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) more coins (c) fewer coins (d) only water
18. 18.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
19. 19.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a hollow bird bone (c) an electric tower (d) a bamboo pole
20. 20.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) paper with folded edges (d) one flat sheet
21. 21.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is made of steel (c) it is magnetic (d) its curved arch shape
22. 22.🔍 Which is the odd one out? (a) rolled paper tubes (b) a zigzag-folded sheet (c) one flat sheet (d) a U-shaped channel
23. 23.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we measure it (b) we change it (c) we keep it the same
24. 24.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) sheets of paper (c) coins (d) a ruler
25. 25.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) yeast (d) sheets of paper
27. 27.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on a stool edge (c) on top of a pet (d) high and wobbly
28. 28.True or false: a zigzag-folded sheet makes a strong bridge. (a) True (b) False
29. 29.🌉 Which of these makes a strong bridge? (a) rolled paper tubes (b) a flat tissue (c) a wet flat sheet (d) a torn flat sheet
30. 30.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
31. 31.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) where coins are placed (c) the kind of coins (d) the shape of the paper
32. 32.True or false: a flat tissue makes a strong bridge. (a) True (b) False
33. 33.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
34. 34.🌉 Does paper with folded edges 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) a ruler (b) coins (c) sheets of paper (d) yeast
36. 36.⚖️ 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
37. 37.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
38. 38.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) the same number of (c) more (d) zero
39. 39.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we keep it the same (c) we change it
40. 40.True or false: a bridge truss gets its strength from arches or domes. (a) True (b) False

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