Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 713 · 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.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a magnet (c) a ruler (d) two books
2. 2.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) lick your fingers (c) skip washing (d) rub your eyes
3. 3.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds make it stiffer (c) folds add glue (d) folds are magnetic
4. 4.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
5. 5.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) the shape of the paper (c) coins it holds (d) where coins are placed
6. 6.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
7. 7.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a battery cell (c) turmeric powder (d) coins
8. 8.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) on top of a pet (d) low and steady
9. 9.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a bamboo pole (c) an electric tower (d) an eggshell
10. 10.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) tubes (c) arches and domes
11. 11.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
12. 12.🧺 Which of these is needed for the paper bridge? (a) sheets of paper (b) a balloon (c) a magnet (d) a mirror
13. 13.🔍 Which is the odd one out? (a) a U-shaped channel (b) a flat tissue (c) a zigzag-folded sheet (d) rolled paper tubes
14. 14.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) sheets of paper (d) a magnet
15. 15.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed
16. 16.True or false: an old stone bridge gets its strength from arches or domes. (a) True (b) False
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
18. 18.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we measure it (c) we keep it the same
19. 19.True or false: two books is needed for the paper bridge. (a) True (b) False
20. 20.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) more (c) zero (d) fewer
21. 21.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a U-shaped channel (c) a zigzag-folded sheet (d) a torn flat sheet
22. 22.🧺 Which of these is not needed for the paper bridge? (a) turmeric powder (b) a ruler (c) sheets of paper (d) two books
23. 23.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
24. 24.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
25. 25.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
26. 26.True or false: a magnet is not needed for the paper bridge. (a) False (b) True
27. 27.True or false: a hollow bird bone gets its strength from arches or domes. (a) True (b) False
28. 28.True or false: yeast is needed for the paper bridge. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) paper with folded edges (d) a wet flat sheet
30. 30.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a flat tissue (c) paper with folded edges (d) one flat sheet
31. 31.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
32. 32.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
33. 33.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) tubes (c) arches and domes
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) sheets of paper (d) a balloon
35. 35.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
36. 36.True or false: a roof frame gets its strength from arches or domes. (a) False (b) True
37. 37.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we keep it the same (b) we measure it (c) we change it
38. 38.True or false: a temple dome gets its strength from arches or domes. (a) False (b) True
39. 39.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) yeast (d) sheets of paper
40. 40.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we change it (c) we keep it the same

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