Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 44 · 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 magnet is not needed for the paper bridge. (a) False (b) True
2. 2.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we change it (b) we keep it the same (c) we measure it
3. 3.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) two books (c) sheets of paper (d) a balloon
4. 4.True or false: a temple dome gets its strength from a tube shape. (a) True (b) False
5. 5.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
6. 6.🌉 Which of these makes a strong bridge? (a) rolled paper tubes (b) a flat tissue (c) a wet flat sheet (d) one flat sheet
7. 7.🏗️ Which of these gets its strength from a tube shape? (a) a roof frame (b) an electric tower (c) an eggshell (d) a round pillar
8. 8.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a mirror (c) yeast (d) two books
9. 9.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) wash your hands (c) skip washing (d) lick your fingers
10. 10.True or false: a torn flat sheet makes a strong bridge. (a) True (b) False
11. 11.True or false: a balloon is needed for the paper bridge. (a) True (b) False
12. 12.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we keep it the same (b) we measure it (c) we change it
13. 13.True or false: one flat sheet makes a weak bridge. (a) False (b) True
14. 14.🛟 How should the two books be placed for the paper bridge? (a) high and wobbly (b) on a stool edge (c) low and steady (d) on top of a pet
15. 15.⚖️ 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
16. 16.🧺 Which of these is not needed for the paper bridge? (a) yeast (b) sheets of paper (c) two books (d) coins
17. 17.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) the same number of (c) more (d) fewer
18. 18.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the heart shape (c) the square (d) the triangle
19. 19.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
20. 20.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
21. 21.🔍 Which is the odd one out? (a) rolled paper tubes (b) a flat tissue (c) a wet flat sheet (d) one flat sheet
22. 22.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
23. 23.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
24. 24.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a temple dome (c) a bamboo pole (d) an old stone bridge
25. 25.🏗️ Which of these gets its strength from arches or domes? (a) an eggshell (b) a roof frame (c) an electric tower (d) a bridge truss
26. 26.True or false: a mirror is needed for the paper bridge. (a) True (b) False
27. 27.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds add glue (c) folds make it stiffer (d) folds are magnetic
28. 28.🔮 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
29. 29.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) yeast (c) coins (d) a magnet
30. 30.🧺 Which of these is needed for the paper bridge? (a) turmeric powder (b) sheets of paper (c) a magnet (d) a mirror
31. 31.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is very hot (c) it is magnetic (d) its curved arch shape
32. 32.True or false: one flat sheet makes a strong bridge. (a) True (b) False
33. 33.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a balloon (c) sheets of paper (d) coins
34. 34.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) coins (c) sheets of paper (d) a ruler
35. 35.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
36. 36.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
37. 37.True or false: a hollow bird bone gets its strength from triangles. (a) True (b) False
38. 38.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) where coins are placed (b) the kind of paper (c) the kind of coins (d) coins it holds
39. 39.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) True (b) False
40. 40.🏗️ Where does a bridge truss get its strength from? (a) arches and domes (b) tubes (c) triangles

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