Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 1 · 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.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a bamboo pole (c) a hollow bird bone (d) an electric tower
2. 2.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) sheets of paper (d) a mirror
3. 3.🏗️ Which of these gets its strength from arches or domes? (a) an old stone bridge (b) an electric tower (c) a hollow bird bone (d) a roof frame
4. 4.⚖️ 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
5. 5.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) high and wobbly (c) on a stool edge (d) low and steady
6. 6.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
7. 7.🔍 Which is the odd one out? (a) one flat sheet (b) a flat tissue (c) a U-shaped channel (d) a torn flat sheet
8. 8.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
9. 9.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the gap between books (b) coins it holds (c) the shape of the paper (d) the kind of paper
10. 10.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
11. 11.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) a bamboo pole (c) an eggshell (d) a hollow bird bone
12. 12.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is very hot (c) it is made of steel (d) its curved arch shape
13. 13.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
14. 14.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False
15. 15.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) a magnet (d) sheets of paper
16. 16.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
17. 17.True or false: a mirror is needed for the paper bridge. (a) True (b) False
18. 18.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we keep it the same (c) we change it
19. 19.🔮 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
20. 20.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) one flat sheet (c) a wet flat sheet (d) a U-shaped channel
21. 21.🌉 Which of these makes a weak bridge? (a) one flat sheet (b) a U-shaped channel (c) a zigzag-folded sheet (d) paper with folded edges
22. 22.⚖️ 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 measure it (c) we change it
23. 23.True or false: one flat sheet makes a weak bridge. (a) True (b) False
24. 24.True or false: an electric tower gets its strength from a tube shape. (a) True (b) False
25. 25.⚖️ 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
26. 26.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
27. 27.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it wet (c) folds are magnetic (d) folds make it stiffer
28. 28.🔍 Which is the odd one out? (a) one flat sheet (b) a flat tissue (c) a wet flat sheet (d) a zigzag-folded sheet
29. 29.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) sheets of paper (d) a battery cell
31. 31.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) True (b) False
32. 32.True or false: a flat tissue makes a weak bridge. (a) False (b) True
33. 33.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it sags and falls (b) it gets stronger (c) it turns to card (d) it floats up
34. 34.🏗️ Which of these gets its strength from a tube shape? (a) a bridge truss (b) an electric tower (c) a temple dome (d) a bamboo pole
35. 35.True or false: coins is needed for the paper bridge. (a) False (b) True
36. 36.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) coins (c) a battery cell (d) turmeric powder
37. 37.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) a bamboo pole (c) a roof frame (d) an old stone bridge
38. 38.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) turmeric powder (d) two books
40. 40.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) more (c) the same number of (d) zero

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