Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 406 · 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? Which of these is what we measure? (a) the gap between books (b) the kind of coins (c) the kind of paper (d) coins it holds
2. 2.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
3. 3.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
4. 4.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
5. 5.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the square (c) the heart shape (d) the star
6. 6.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) high and wobbly (c) on top of a pet (d) low and steady
7. 7.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) less (c) upward (d) not at all
8. 8.🔍 Which is the odd one out? (a) rolled paper tubes (b) a wet flat sheet (c) a torn flat sheet (d) a flat tissue
9. 9.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) two books (c) a magnet (d) coins
10. 10.True or false: a temple dome gets its strength from arches or domes. (a) False (b) True
11. 11.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
12. 12.⚖️ 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
13. 13.True or false: a magnet is needed for the paper bridge. (a) False (b) True
14. 14.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) tubes (c) arches and domes
15. 15.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
16. 16.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) the kind of paper (c) coins it holds
17. 17.True or false: rolled paper tubes makes a strong bridge. (a) True (b) False
18. 18.True or false: a U-shaped channel makes a strong bridge. (a) True (b) False
19. 19.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) arches and domes (c) tubes
20. 20.⚖️ 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
21. 21.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
22. 22.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) yeast (d) sheets of paper
23. 23.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
24. 24.⚖️ 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 measure it (c) we change it
25. 25.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) more (c) zero (d) the same number of
26. 26.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) two books (c) coins (d) sheets of paper
27. 27.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a torn flat sheet (c) a flat tissue (d) rolled paper tubes
28. 28.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a zigzag-folded sheet (c) one flat sheet (d) paper with folded edges
29. 29.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) coins (d) a mirror
30. 30.True or false: yeast is needed for the paper bridge. (a) True (b) False
31. 31.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) one flat sheet (c) paper with folded edges (d) a wet flat sheet
32. 32.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it turns to card (c) it floats up (d) it sags and falls
33. 33.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a torn flat sheet (c) a zigzag-folded sheet (d) one flat sheet
34. 34.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) arches and domes (c) triangles
35. 35.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) the kind of coins (c) the shape of the paper (d) coins it holds
36. 36.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) sheets of paper (c) a balloon (d) a magnet
37. 37.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a ruler (c) a balloon (d) a mirror
38. 38.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a U-shaped channel (c) one flat sheet (d) paper with folded edges
39. 39.🔍 Which is the odd one out? (a) a flat tissue (b) rolled paper tubes (c) a zigzag-folded sheet (d) a U-shaped channel
40. 40.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) lick your fingers (c) rub your eyes (d) wash your hands

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