Paper Bridge STEM Challenge Worksheet

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

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