Paper Bridge STEM Challenge Worksheet

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

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