Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 553 · 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: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
2. 2.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) two books (c) a mirror (d) a magnet
3. 3.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
4. 4.🏗️ Which of these gets its strength from triangles? (a) an old stone bridge (b) a roof frame (c) an eggshell (d) a temple dome
5. 5.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is very hot (b) it is magnetic (c) it is made of steel (d) its curved arch shape
6. 6.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the kind of paper (b) coins it holds (c) the shape of the paper (d) the gap between books
7. 7.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) rub your eyes (c) skip washing (d) wash your hands
8. 8.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds are magnetic (b) folds add glue (c) folds make it wet (d) folds make it stiffer
9. 9.🧺 Do we need a mirror for the paper bridge? (a) needed (b) not needed
10. 10.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a U-shaped channel (d) a torn flat sheet
11. 11.🧺 Do we need yeast for the paper bridge? (a) not needed (b) needed
12. 12.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) one flat sheet (c) paper with folded edges (d) a wet flat sheet
13. 13.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the triangle (b) the heart shape (c) the square (d) the star
14. 14.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
15. 15.True or false: a round pillar gets its strength from arches or domes. (a) True (b) False
16. 16.True or false: coins is needed for the paper bridge. (a) True (b) False
17. 17.⚖️ 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) coins it holds (c) where coins are placed (d) the kind of paper
18. 18.True or false: an eggshell gets its strength from a tube shape. (a) False (b) True
19. 19.🏗️ Where does an eggshell get its strength from? (a) triangles (b) arches and domes (c) tubes
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.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) on a stool edge (c) high and wobbly (d) low and steady
22. 22.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) rolled paper tubes (c) a flat tissue (d) a wet flat sheet
23. 23.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) the same number of (c) zero (d) fewer
24. 24.🏗️ Where does a roof frame get its strength from? (a) tubes (b) arches and domes (c) triangles
25. 25.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a ruler (c) turmeric powder (d) two books
26. 26.True or false: a bamboo pole gets its strength from arches or domes. (a) True (b) False
27. 27.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a zigzag-folded sheet (c) one flat sheet (d) a U-shaped channel
28. 28.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a mirror (b) two books (c) coins (d) sheets of paper
29. 29.🏗️ Which of these gets its strength from a tube shape? (a) an old stone bridge (b) an eggshell (c) a bridge truss (d) a hollow bird bone
30. 30.🏗️ Which of these gets its strength from triangles? (a) a bridge truss (b) a hollow bird bone (c) a bamboo pole (d) a round pillar
31. 31.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) arches and domes (c) tubes
32. 32.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
33. 33.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
34. 34.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) only water (c) the same coins (d) more coins
35. 35.True or false: coins is not needed for the paper bridge. (a) False (b) True
36. 36.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
37. 37.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
38. 38.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) the kind of paper (b) coins it holds (c) the shape of the paper
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
40. 40.True or false: two books is needed for the paper bridge. (a) False (b) True

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