Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 855 · 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 the one thing we change? (a) the kind of coins (b) the shape of the paper (c) coins it holds (d) the gap between books
2. 2.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) skip washing (c) rub your eyes (d) lick your fingers
3. 3.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) yeast (c) a ruler (d) a magnet
4. 4.True or false: one flat sheet makes a strong bridge. (a) False (b) True
5. 5.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we measure it (c) we keep it the same
6. 6.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is the one thing we change. (a) False (b) True
7. 7.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) low and steady (c) on top of a pet (d) high and wobbly
8. 8.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) tubes (c) triangles
9. 9.True or false: a bridge truss gets its strength from a tube shape. (a) False (b) True
10. 10.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) fewer (c) the same number of (d) more
11. 11.⚖️ 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
12. 12.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) sheets of paper (d) turmeric powder
13. 13.True or false: a roof frame gets its strength from a tube shape. (a) False (b) True
14. 14.🧺 Which of these is needed for the paper bridge? (a) yeast (b) coins (c) a balloon (d) a battery cell
15. 15.⚖️ 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 keep it the same (c) we measure it
16. 16.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
17. 17.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) not at all (c) upward (d) less
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) two books (c) sheets of paper (d) a ruler
19. 19.🏗️ Where does a temple dome get its strength from? (a) arches and domes (b) tubes (c) triangles
20. 20.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
21. 21.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
22. 22.True or false: a flat tissue makes a weak bridge. (a) False (b) True
23. 23.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
24. 24.🔍 Which is the odd one out? (a) a U-shaped channel (b) a zigzag-folded sheet (c) paper with folded edges (d) a wet flat sheet
25. 25.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) the same coins (b) fewer coins (c) only water (d) more coins
26. 26.⚖️ 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
27. 27.🧺 Which of these is not needed for the paper bridge? (a) a magnet (b) two books (c) coins (d) sheets of paper
28. 28.🧺 Which of these is not needed for the paper bridge? (a) coins (b) two books (c) sheets of paper (d) turmeric powder
29. 29.⚖️ 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
30. 30.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a torn flat sheet (c) a zigzag-folded sheet (d) a U-shaped channel
31. 31.🌉 Which of these makes a strong bridge? (a) paper with folded edges (b) a wet flat sheet (c) a torn flat sheet (d) one flat sheet
32. 32.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) triangles (c) arches and domes
33. 33.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) triangles (c) tubes
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) yeast (c) a ruler (d) two books
35. 35.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) a magnet (c) a mirror (d) two books
36. 36.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds are magnetic (c) folds add glue (d) folds make it wet
37. 37.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
38. 38.⚖️ 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 measure it (c) we change it
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) True (b) False
40. 40.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True

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