Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 261 · 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 gets its strength from arches or domes? (a) an electric tower (b) a roof frame (c) a hollow bird bone (d) an eggshell
2. 2.True or false: a mirror is needed for the paper bridge. (a) True (b) False
3. 3.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) more (d) fewer
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) a magnet (d) two books
5. 5.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
6. 6.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a round pillar (c) a bridge truss (d) a temple dome
7. 7.⚖️ 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
8. 8.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) coins (c) yeast (d) a ruler
9. 9.True or false: coins is not needed for the paper bridge. (a) False (b) True
10. 10.🏗️ Which of these gets its strength from triangles? (a) an electric tower (b) a temple dome (c) a hollow bird bone (d) an eggshell
11. 11.⚖️ 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
12. 12.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
13. 13.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) the kind of coins
14. 14.True or false: paper with folded edges makes a strong bridge. (a) True (b) False
15. 15.⚖️ 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
16. 16.⚖️ 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) coins it holds (d) the shape of the paper
17. 17.🔍 Which is the odd one out? (a) a wet flat sheet (b) a flat tissue (c) a torn flat sheet (d) rolled paper tubes
18. 18.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) a balloon (d) two books
20. 20.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) True (b) False
21. 21.🌉 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
22. 22.🏗️ Where does a roof frame get its strength from? (a) arches and domes (b) triangles (c) tubes
23. 23.🔍 Which is the odd one out? (a) rolled paper tubes (b) paper with folded edges (c) a wet flat sheet (d) a zigzag-folded sheet
24. 24.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) less (c) not at all (d) upward
25. 25.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the heart shape (b) the square (c) the star (d) the triangle
26. 26.🏗️ Which of these gets its strength from a tube shape? (a) a round pillar (b) an old stone bridge (c) a bridge truss (d) a temple dome
27. 27.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
28. 28.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
29. 29.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is made of steel (c) its curved arch shape (d) it is magnetic
30. 30.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
31. 31.True or false: a bridge truss gets its strength from a tube shape. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) rolled paper tubes (c) a U-shaped channel (d) a torn flat sheet
33. 33.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) True (b) False
34. 34.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) paper with folded edges (b) one flat sheet (c) a flat tissue (d) a wet flat sheet
36. 36.🏗️ Where does an eggshell get its strength from? (a) tubes (b) arches and domes (c) triangles
37. 37.🧺 Which of these is needed for the paper bridge? (a) two books (b) turmeric powder (c) a battery cell (d) a balloon
38. 38.🏗️ Where does a round pillar get its strength from? (a) triangles (b) tubes (c) arches and domes
39. 39.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) high and wobbly (c) on a stool edge (d) low and steady
40. 40.🛟 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

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