Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 807 · 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.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
2. 2.⚖️ 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
3. 3.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) tubes (c) triangles
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) coins (d) a battery cell
5. 5.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) more (d) the same number of
6. 6.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
7. 7.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) arches and domes (c) tubes
8. 8.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
9. 9.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) True (b) False
10. 10.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
11. 11.True or false: an old stone bridge gets its strength from a tube shape. (a) True (b) False
12. 12.🛟 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
13. 13.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
14. 14.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
15. 15.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) a ruler (c) sheets of paper (d) coins
16. 16.True or false: a temple dome gets its strength from triangles. (a) False (b) True
17. 17.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) triangles (c) tubes
18. 18.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
19. 19.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) only water (c) more coins (d) fewer coins
20. 20.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) a torn flat sheet (d) a U-shaped channel
21. 21.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) on a stool edge (c) high and wobbly (d) low and steady
22. 22.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the heart shape (c) the square (d) the star
23. 23.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds add glue (c) folds make it stiffer (d) folds are magnetic
24. 24.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
25. 25.True or false: a magnet is needed for the paper bridge. (a) True (b) False
26. 26.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) True (b) False
28. 28.True or false: two books is not needed for the paper bridge. (a) True (b) False
29. 29.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
30. 30.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a flat tissue (c) a torn flat sheet (d) paper with folded edges
31. 31.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) a zigzag-folded sheet (d) a wet flat sheet
32. 32.True or false: yeast is needed for the paper bridge. (a) False (b) True
33. 33.⚖️ 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
34. 34.🔍 Which is the odd one out? (a) a U-shaped channel (b) paper with folded edges (c) a zigzag-folded sheet (d) a wet flat sheet
35. 35.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we keep it the same (c) we measure it
36. 36.True or false: paper with folded edges makes a weak bridge. (a) False (b) True
37. 37.True or false: one flat sheet makes a weak bridge. (a) False (b) True
38. 38.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) a wet flat sheet (d) rolled paper tubes
39. 39.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
40. 40.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed

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