Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 997 · 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.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) the same coins (c) only water (d) more coins
2. 2.🔍 Which is the odd one out? (a) a wet flat sheet (b) one flat sheet (c) a torn flat sheet (d) a zigzag-folded sheet
3. 3.True or false: a magnet is not needed for the paper bridge. (a) True (b) False
4. 4.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we measure it (c) we keep it the same
5. 5.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) two books (d) yeast
6. 6.🏗️ Which of these gets its strength from a tube shape? (a) a temple dome (b) a bridge truss (c) a round pillar (d) an eggshell
7. 7.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) triangles (c) tubes
8. 8.True or false: yeast is not needed for the paper bridge. (a) False (b) True
9. 9.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds are magnetic (c) folds make it wet (d) folds add glue
10. 10.🏗️ Where does a round pillar get its strength from? (a) tubes (b) triangles (c) arches and domes
11. 11.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
12. 12.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
13. 13.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a flat tissue (c) a wet flat sheet (d) a zigzag-folded sheet
14. 14.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a ruler (c) sheets of paper (d) a magnet
15. 15.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) rub your eyes (c) lick your fingers (d) wash your hands
16. 16.True or false: rolled paper tubes makes a strong bridge. (a) True (b) False
17. 17.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
18. 18.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we change it (c) we measure it
19. 19.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is what we measure. (a) True (b) False
20. 20.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) the same number of (d) more
21. 21.🔺 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 star (d) the heart shape
22. 22.🌉 Which of these makes a weak bridge? (a) a torn flat sheet (b) rolled paper tubes (c) paper with folded edges (d) a zigzag-folded sheet
23. 23.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) more (c) not at all (d) upward
24. 24.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of coins (b) the shape of the paper (c) coins it holds
25. 25.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we keep it the same (c) we change it
26. 26.True or false: turmeric powder is needed for the paper bridge. (a) False (b) True
27. 27.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on a stool edge (c) on top of a pet (d) high and wobbly
28. 28.🔍 Which is the odd one out? (a) a flat tissue (b) a wet flat sheet (c) one flat sheet (d) a U-shaped channel
29. 29.🔍 Which is the odd one out? (a) a U-shaped channel (b) a flat tissue (c) a zigzag-folded sheet (d) paper with folded edges
30. 30.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
31. 31.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a battery cell (c) sheets of paper (d) a ruler
32. 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) sheets of paper (c) a ruler (d) coins
33. 33.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
34. 34.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
35. 35.🏗️ Where does a temple dome get its strength from? (a) triangles (b) arches and domes (c) tubes
36. 36.True or false: a balloon is not needed for the paper bridge. (a) True (b) False
37. 37.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
38. 38.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
39. 39.True or false: two books is not needed for the paper bridge. (a) False (b) True
40. 40.True or false: a U-shaped channel makes a weak bridge. (a) False (b) True

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