Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 969 · 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 floats up (b) it gets stronger (c) it turns to card (d) it sags and falls
2. 2.⚖️ 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
3. 3.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we change it (c) we measure it
4. 4.🔍 Which is the odd one out? (a) paper with folded edges (b) a flat tissue (c) rolled paper tubes (d) a zigzag-folded sheet
5. 5.True or false: a battery cell is needed for the paper bridge. (a) False (b) True
6. 6.True or false: paper with folded edges makes a strong bridge. (a) True (b) False
7. 7.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) False (b) True
8. 8.True or false: a wet flat sheet makes a weak bridge. (a) True (b) False
9. 9.🧺 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
10. 10.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
11. 11.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
12. 12.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
13. 13.🏗️ Where does an electric tower get its strength from? (a) triangles (b) arches and domes (c) tubes
14. 14.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is very hot (c) it is magnetic (d) its curved arch shape
15. 15.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
16. 16.🌉 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
17. 17.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) an old stone bridge (c) a hollow bird bone (d) a bridge truss
18. 18.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a round pillar (c) a bridge truss (d) a hollow bird bone
19. 19.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
20. 20.True or false: a mirror is not needed for the paper bridge. (a) False (b) True
21. 21.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) a torn flat sheet (d) a U-shaped channel
22. 22.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
23. 23.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) arches and domes (c) tubes
24. 24.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) True (b) False
25. 25.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) rolled paper tubes (b) a wet flat sheet (c) a U-shaped channel (d) paper with folded edges
27. 27.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a flat tissue (c) one flat sheet (d) paper with folded edges
28. 28.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) more (d) fewer
29. 29.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) more (c) upward (d) less
30. 30.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) rolled paper tubes (c) one flat sheet (d) a wet flat sheet
31. 31.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) turmeric powder (c) sheets of paper (d) a magnet
32. 32.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we keep it the same (c) we measure it
33. 33.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) triangles (c) tubes
34. 34.🛟 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
35. 35.🔍 Which is the odd one out? (a) a wet flat sheet (b) one flat sheet (c) a torn flat sheet (d) a U-shaped channel
36. 36.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
37. 37.🧺 Which of these is not needed for the paper bridge? (a) coins (b) two books (c) turmeric powder (d) sheets of paper
38. 38.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) a round pillar (c) a temple dome (d) a roof frame
39. 39.🏗️ Which of these gets its strength from arches or domes? (a) an eggshell (b) a bridge truss (c) a hollow bird bone (d) a bamboo pole
40. 40.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False

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