Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 964 · 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? What do we do with “the kind of paper”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.⚖️ 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
3. 3.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
4. 4.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
5. 5.⚖️ 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 keep it the same (c) we change it
6. 6.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on top of a pet (c) on a stool edge (d) low and steady
7. 7.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
8. 8.⚖️ 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
9. 9.🏗️ Where does a temple dome get its strength from? (a) arches and domes (b) tubes (c) triangles
10. 10.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
11. 11.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
12. 12.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it turns to card (c) it gets stronger (d) it sags and falls
13. 13.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it stiffer (c) folds are magnetic (d) folds make it wet
14. 14.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) skip washing (c) lick your fingers (d) rub your eyes
15. 15.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
16. 16.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
17. 17.🏗️ Where does a roof frame get its strength from? (a) tubes (b) triangles (c) arches and domes
18. 18.🔍 Which is the odd one out? (a) paper with folded edges (b) rolled paper tubes (c) a flat tissue (d) a zigzag-folded sheet
19. 19.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) more (d) the same number of
20. 20.🔍 Which is the odd one out? (a) a wet flat sheet (b) a zigzag-folded sheet (c) a U-shaped channel (d) paper with folded edges
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a balloon (c) a ruler (d) coins
22. 22.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we measure it (c) we keep it the same
23. 23.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
24. 24.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) yeast (c) coins (d) a battery cell
25. 25.🏗️ Where does a round pillar get its strength from? (a) triangles (b) tubes (c) arches and domes
26. 26.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a bridge truss (c) a hollow bird bone (d) a bamboo pole
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) False (b) True
28. 28.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a magnet (c) two books (d) a balloon
29. 29.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) coins it holds (c) where coins are placed (d) the shape of the paper
30. 30.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
31. 31.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
32. 32.🔍 Which is the odd one out? (a) a flat tissue (b) a zigzag-folded sheet (c) a wet flat sheet (d) one flat sheet
33. 33.🔺 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
34. 34.True or false: a zigzag-folded sheet makes a strong bridge. (a) True (b) False
35. 35.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) a U-shaped channel (c) rolled paper tubes (d) a zigzag-folded sheet
36. 36.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the gap between books (b) the kind of coins (c) the shape of the paper (d) coins it holds
37. 37.True or false: a mirror is needed for the paper bridge. (a) True (b) False
38. 38.True or false: an electric tower gets its strength from arches or domes. (a) False (b) True
39. 39.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
40. 40.True or false: two books is not needed for the paper bridge. (a) False (b) True

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