Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 938 · 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.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) fewer coins (c) the same coins (d) only water
2. 2.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a battery cell (c) coins (d) turmeric powder
3. 3.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we keep it the same (b) we change it (c) we measure it
4. 4.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) rolled paper tubes (c) one flat sheet (d) paper with folded edges
5. 5.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
6. 6.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
7. 7.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
8. 8.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) one flat sheet (d) a U-shaped channel
9. 9.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of coins (b) where coins are placed (c) the kind of paper (d) the shape of the paper
10. 10.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the gap between books (b) the shape of the paper (c) the kind of coins (d) coins it holds
11. 11.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) lick your fingers (d) wash your hands
12. 12.True or false: a balloon is needed for the paper bridge. (a) True (b) False
13. 13.🥚 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
14. 14.⚖️ 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
15. 15.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a ruler (d) a battery cell
16. 16.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a torn flat sheet (c) rolled paper tubes (d) a zigzag-folded sheet
17. 17.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
18. 18.True or false: a ruler is not needed for the paper bridge. (a) True (b) False
19. 19.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) False (b) True
20. 20.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) high and wobbly (d) low and steady
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) a ruler (c) a balloon (d) sheets of paper
22. 22.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
23. 23.True or false: paper with folded edges makes a weak bridge. (a) True (b) False
24. 24.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is what we measure. (a) True (b) False
25. 25.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) fewer (b) zero (c) more (d) the same number of
26. 26.🏗️ Which of these gets its strength from arches or domes? (a) an electric tower (b) a bamboo pole (c) an eggshell (d) a round pillar
27. 27.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) False (b) True
28. 28.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
29. 29.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it stiffer (c) folds are magnetic (d) folds make it wet
30. 30.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed
31. 31.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a magnet (c) a ruler (d) sheets of paper
32. 32.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
33. 33.True or false: one flat sheet makes a strong bridge. (a) True (b) False
34. 34.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we measure it (c) we change it
35. 35.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) one flat sheet (c) a zigzag-folded sheet (d) a torn flat sheet
36. 36.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) tubes (c) arches and domes
37. 37.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a balloon (c) a mirror (d) sheets of paper
38. 38.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the square (b) the heart shape (c) the triangle (d) the star
39. 39.🏗️ Which of these gets its strength from triangles? (a) a roof frame (b) a round pillar (c) an eggshell (d) a hollow bird bone
40. 40.⚖️ 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

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