Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 479 · 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.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
2. 2.⚖️ 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) the gap between books (c) coins it holds (d) where coins are placed
3. 3.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
4. 4.🏗️ Where does a temple dome get its strength from? (a) triangles (b) tubes (c) arches and domes
5. 5.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds are magnetic (c) folds make it wet (d) folds add glue
6. 6.🛟 How should the two books be placed for the paper bridge? (a) low and steady (b) on top of a pet (c) on a stool edge (d) high and wobbly
7. 7.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a roof frame (c) a bridge truss (d) a round pillar
8. 8.🧺 Which of these is needed for the paper bridge? (a) yeast (b) two books (c) a battery cell (d) turmeric powder
9. 9.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
10. 10.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
11. 11.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) coins (c) a ruler (d) two books
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.True or false: an eggshell gets its strength from triangles. (a) True (b) False
14. 14.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) wash your hands (c) lick your fingers (d) skip washing
15. 15.🔍 Which is the odd one out? (a) a zigzag-folded sheet (b) a wet flat sheet (c) one flat sheet (d) a flat tissue
16. 16.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
17. 17.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is what we measure. (a) False (b) True
18. 18.True or false: an electric tower gets its strength from a tube shape. (a) True (b) False
19. 19.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a wet flat sheet (c) a U-shaped channel (d) one flat sheet
20. 20.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
21. 21.True or false: a flat tissue makes a weak bridge. (a) True (b) False
22. 22.True or false: a balloon is needed for the paper bridge. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) one flat sheet (b) a flat tissue (c) a U-shaped channel (d) a wet flat sheet
24. 24.🏗️ Where does an eggshell get its strength from? (a) arches and domes (b) triangles (c) tubes
25. 25.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) the same number of (c) more (d) fewer
26. 26.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we measure it (b) we change it (c) we keep it the same
27. 27.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) two books (c) sheets of paper (d) a balloon
28. 28.True or false: yeast is needed for the paper bridge. (a) True (b) False
29. 29.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
30. 30.True or false: a bamboo pole gets its strength from a tube shape. (a) True (b) False
31. 31.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) less (c) upward (d) more
32. 32.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
33. 33.True or false: sheets of paper is not needed for the paper bridge. (a) True (b) False
34. 34.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the shape of the paper (b) coins it holds (c) the gap between books
35. 35.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a flat tissue (c) rolled paper tubes (d) a wet flat sheet
36. 36.True or false: an electric tower gets its strength from arches or domes. (a) False (b) True
37. 37.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
38. 38.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is very hot (c) it is made of steel (d) its curved arch shape
39. 39.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
40. 40.⚖️ 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

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