Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 661 · 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) a balloon (b) coins (c) sheets of paper (d) two books
2. 2.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we measure it (b) we change it (c) we keep it the same
3. 3.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) sheets of paper (c) two books (d) a balloon
4. 4.⚖️ 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
5. 5.True or false: an old stone bridge gets its strength from a tube shape. (a) False (b) True
6. 6.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
7. 7.True or false: a U-shaped channel makes a strong bridge. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) paper with folded edges (b) a torn flat sheet (c) a wet flat sheet (d) a flat tissue
9. 9.🌉 Which of these makes a strong bridge? (a) paper with folded edges (b) a torn flat sheet (c) a wet flat sheet (d) a flat tissue
10. 10.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) a battery cell (d) coins
11. 11.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a bridge truss (c) a bamboo pole (d) a roof frame
12. 12.True or false: a roof frame gets its strength from arches or domes. (a) False (b) True
13. 13.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
14. 14.True or false: a flat tissue makes a weak bridge. (a) True (b) False
15. 15.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
16. 16.True or false: one flat sheet makes a strong bridge. (a) False (b) True
17. 17.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) its curved arch shape (c) it is made of steel (d) it is very hot
18. 18.🔍 Which is the odd one out? (a) paper with folded edges (b) one flat sheet (c) a zigzag-folded sheet (d) a U-shaped channel
19. 19.True or false: coins is not needed for the paper bridge. (a) True (b) False
20. 20.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) wash your hands (c) rub your eyes (d) skip washing
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) sheets of paper (c) two books (d) a ruler
22. 22.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) fewer (c) zero (d) more
23. 23.⚖️ 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
24. 24.True or false: a balloon is not needed for the paper bridge. (a) False (b) True
25. 25.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a ruler (d) a mirror
26. 26.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) the kind of coins (c) where coins are placed (d) coins it holds
27. 27.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the shape of the paper (b) where coins are placed (c) the kind of paper (d) coins it holds
28. 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) coins (d) a magnet
29. 29.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) a hollow bird bone (c) a roof frame (d) an eggshell
30. 30.True or false: an eggshell gets its strength from arches or domes. (a) True (b) False
31. 31.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a wet flat sheet (c) paper with folded edges (d) a zigzag-folded sheet
32. 32.⚖️ 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
33. 33.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) tubes (c) arches and domes
34. 34.🏗️ Where does an electric tower get its strength from? (a) triangles (b) tubes (c) arches and domes
35. 35.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) tubes (c) triangles
36. 36.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
37. 37.🔍 Which is the odd one out? (a) paper with folded edges (b) a wet flat sheet (c) a zigzag-folded sheet (d) a U-shaped channel
38. 38.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds add glue (c) folds make it stiffer (d) folds make it wet
39. 39.🌉 Which of these makes a weak bridge? (a) a torn flat sheet (b) rolled paper tubes (c) a U-shaped channel (d) paper with folded edges
40. 40.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge

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