Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 154 · 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) where coins are placed (d) coins it holds
2. 2.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
3. 3.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a balloon (c) a ruler (d) two books
4. 4.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
5. 5.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) triangles (c) tubes
6. 6.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) a torn flat sheet (c) rolled paper tubes (d) paper with folded edges
7. 7.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) an electric tower (c) a hollow bird bone (d) an old stone bridge
8. 8.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) more (d) the same number of
9. 9.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a flat tissue (d) a zigzag-folded sheet
10. 10.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a flat tissue (c) rolled paper tubes (d) one flat sheet
11. 11.🏗️ Which of these gets its strength from triangles? (a) a hollow bird bone (b) an electric tower (c) an old stone bridge (d) a bamboo pole
12. 12.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it floats up (c) it sags and falls (d) it gets stronger
13. 13.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we keep it the same (b) we change it (c) we measure it
14. 14.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we keep it the same (c) we change it
15. 15.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we keep it the same (c) we measure it
16. 16.True or false: two books is not needed for the paper bridge. (a) False (b) True
17. 17.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a ruler (c) a battery cell (d) a mirror
18. 18.🧺 Which of these is not needed for the paper bridge? (a) a balloon (b) two books (c) sheets of paper (d) a ruler
19. 19.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) skip washing (b) rub your eyes (c) wash your hands (d) lick your fingers
20. 20.🔮 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
21. 21.🔍 Which is the odd one out? (a) a wet flat sheet (b) a zigzag-folded sheet (c) rolled paper tubes (d) paper with folded edges
22. 22.🧺 Which of these is not needed for the paper bridge? (a) yeast (b) a ruler (c) coins (d) sheets of paper
23. 23.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
24. 24.True or false: a flat tissue makes a strong bridge. (a) True (b) False
25. 25.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a roof frame (c) an old stone bridge (d) a hollow bird bone
26. 26.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) where coins are placed (c) the shape of the paper (d) the kind of coins
27. 27.True or false: coins is needed for the paper bridge. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) rolled paper tubes (b) paper with folded edges (c) a U-shaped channel (d) a flat tissue
29. 29.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
30. 30.True or false: a wet flat sheet makes a weak bridge. (a) False (b) True
31. 31.True or false: a round pillar gets its strength from arches or domes. (a) False (b) True
32. 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) coins (c) sheets of paper (d) a ruler
33. 33.True or false: a magnet is needed for the paper bridge. (a) False (b) True
34. 34.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
35. 35.🔍 Which is the odd one out? (a) a torn flat sheet (b) a zigzag-folded sheet (c) one flat sheet (d) a flat tissue
36. 36.🧺 Which of these is not needed for the paper bridge? (a) turmeric powder (b) two books (c) sheets of paper (d) coins
37. 37.True or false: yeast is needed for the paper bridge. (a) True (b) False
38. 38.🏗️ Where does an old stone bridge get its strength from? (a) arches and domes (b) triangles (c) tubes
39. 39.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
40. 40.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) the same coins (c) only water (d) more coins

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