Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 153 · 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.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
2. 2.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we keep it the same (c) we measure it
3. 3.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a hollow bird bone (c) an old stone bridge (d) a bridge truss
4. 4.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
5. 5.True or false: a round pillar gets its strength from arches or domes. (a) False (b) True
6. 6.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
7. 7.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds make it wet (c) folds are magnetic (d) folds add glue
8. 8.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a torn flat sheet (c) a zigzag-folded sheet (d) rolled paper tubes
9. 9.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) low and steady (d) high and wobbly
10. 10.🥚 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) it is very hot (d) its curved arch shape
11. 11.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a U-shaped channel (c) a torn flat sheet (d) a flat tissue
12. 12.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a zigzag-folded sheet (c) a wet flat sheet (d) a torn flat sheet
13. 13.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
14. 14.⚖️ 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
15. 15.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) more (c) fewer (d) zero
16. 16.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
17. 17.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) a U-shaped channel (b) a flat tissue (c) a wet flat sheet (d) one flat sheet
19. 19.⚖️ 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
20. 20.True or false: coins is needed for the paper bridge. (a) False (b) True
21. 21.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) an eggshell (c) a bridge truss (d) a hollow bird bone
22. 22.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
23. 23.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a ruler (d) a balloon
24. 24.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
25. 25.🏗️ Which of these gets its strength from arches or domes? (a) a roof frame (b) a round pillar (c) an old stone bridge (d) a bamboo pole
26. 26.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a roof frame (c) an old stone bridge (d) a bamboo pole
27. 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) yeast (c) two books (d) a ruler
28. 28.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) coins it holds (b) the gap between books (c) where coins are placed (d) the shape of the paper
29. 29.True or false: two books is not needed for the paper bridge. (a) False (b) True
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) a battery cell (d) coins
31. 31.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) sheets of paper (c) two books (d) a balloon
32. 32.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) tubes (c) arches and domes
33. 33.True or false: an old stone bridge gets its strength from triangles. (a) False (b) True
34. 34.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
35. 35.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) True (b) False
36. 36.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
37. 37.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the kind of paper (c) the gap between books (d) the kind of coins
38. 38.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the gap between books (c) coins it holds
39. 39.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it floats up (c) it sags and falls (d) it turns to card
40. 40.True or false: a flat tissue makes a strong bridge. (a) False (b) True

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