Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 120 · 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: rolled paper tubes makes a strong bridge. (a) False (b) True
2. 2.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is magnetic (c) it is very hot (d) it is made of steel
3. 3.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
4. 4.True or false: a ruler is not needed for the paper bridge. (a) False (b) True
5. 5.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
6. 6.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) an electric tower (c) a temple dome (d) a round pillar
7. 7.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) yeast (b) coins (c) sheets of paper (d) two books
8. 8.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) turmeric powder (c) a balloon (d) a ruler
9. 9.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) rolled paper tubes (c) a torn flat sheet (d) a zigzag-folded sheet
10. 10.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) lick your fingers (c) skip washing (d) wash your hands
11. 11.🛟 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
12. 12.True or false: coins is not needed for the paper bridge. (a) False (b) True
13. 13.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) a battery cell (d) coins
14. 14.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) False (b) True
15. 15.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
16. 16.True or false: an old stone bridge gets its strength from triangles. (a) True (b) False
17. 17.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a bamboo pole (c) a bridge truss (d) an old stone bridge
18. 18.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) rolled paper tubes (c) a zigzag-folded sheet (d) a flat tissue
19. 19.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we keep it the same (c) we change it
20. 20.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
21. 21.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we change it (b) we measure it (c) we keep it the same
22. 22.True or false: one flat sheet makes a weak bridge. (a) False (b) True
23. 23.🧺 Which of these is not needed for the paper bridge? (a) coins (b) sheets of paper (c) turmeric powder (d) a ruler
24. 24.🧺 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 magnet
25. 25.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is the one thing we change. (a) False (b) True
26. 26.🏗️ Which of these gets its strength from arches or domes? (a) an old stone bridge (b) a roof frame (c) a hollow bird bone (d) a bamboo pole
27. 27.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a torn flat sheet (d) a U-shaped channel
28. 28.True or false: a hollow bird bone gets its strength from arches or domes. (a) False (b) True
29. 29.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) an eggshell (c) an electric tower (d) a hollow bird bone
30. 30.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) the same number of (c) zero (d) fewer
31. 31.True or false: turmeric powder is not needed for the paper bridge. (a) False (b) True
32. 32.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the star (c) the heart shape (d) the triangle
33. 33.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is what we measure. (a) True (b) False
34. 34.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) fewer coins (c) the same coins (d) only water
35. 35.🧺 Do we need a battery cell for the paper bridge? (a) not needed (b) needed
36. 36.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) not at all (c) more (d) less
37. 37.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a bridge truss (c) a roof frame (d) an eggshell
38. 38.True or false: a magnet is not needed for the paper bridge. (a) True (b) False
39. 39.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) triangles (c) tubes
40. 40.True or false: an old stone bridge gets its strength from a tube shape. (a) True (b) False

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