Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 220 · 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: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) less (c) more (d) not at all
2. 2.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a balloon (c) two books (d) yeast
3. 3.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) the shape of the paper (c) the gap between books (d) the kind of coins
4. 4.🏗️ Where does an eggshell get its strength from? (a) tubes (b) arches and domes (c) triangles
5. 5.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
6. 6.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) one flat sheet (d) a U-shaped channel
7. 7.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) a battery cell (d) two books
8. 8.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a zigzag-folded sheet (c) one flat sheet (d) a torn flat sheet
9. 9.True or false: a torn flat sheet makes a strong bridge. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) a torn flat sheet (b) a wet flat sheet (c) paper with folded edges (d) one flat sheet
11. 11.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) wash your hands (d) lick your fingers
12. 12.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we change it (b) we keep it the same (c) we measure it
13. 13.🧺 Do we need turmeric powder for the paper bridge? (a) needed (b) not needed
14. 14.True or false: a roof frame gets its strength from a tube shape. (a) False (b) True
15. 15.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a ruler (c) two books (d) a balloon
16. 16.🛟 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
17. 17.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) triangles (c) tubes
18. 18.⚖️ 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
19. 19.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) coins it holds (c) where coins are placed (d) the kind of coins
20. 20.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
21. 21.True or false: two books is needed for the paper bridge. (a) False (b) True
22. 22.🏗️ Where does a roof frame get its strength from? (a) triangles (b) tubes (c) arches and domes
23. 23.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a magnet (c) coins (d) two books
24. 24.🏗️ Which of these gets its strength from triangles? (a) an electric tower (b) an eggshell (c) a round pillar (d) a hollow bird bone
25. 25.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) the same coins (c) only water (d) more coins
26. 26.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) more (c) the same number of (d) zero
27. 27.True or false: a mirror is needed for the paper bridge. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a flat tissue (c) one flat sheet (d) a torn flat sheet
29. 29.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
30. 30.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) turmeric powder (c) sheets of paper (d) a ruler
31. 31.True or false: a balloon is needed for the paper bridge. (a) False (b) True
32. 32.True or false: a bridge truss gets its strength from arches or domes. (a) True (b) False
33. 33.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) rolled paper tubes (c) a torn flat sheet (d) paper with folded edges
34. 34.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
35. 35.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) one flat sheet (c) paper with folded edges (d) a zigzag-folded sheet
36. 36.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a battery cell (c) coins (d) two books
37. 37.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) coins (c) sheets of paper (d) a ruler
38. 38.True or false: a round pillar gets its strength from triangles. (a) False (b) True
39. 39.True or false: a bridge truss gets its strength from triangles. (a) False (b) True
40. 40.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is the one thing we change. (a) True (b) False

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