Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 853 · 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: turmeric powder is not needed for the paper bridge. (a) False (b) True
2. 2.⚖️ 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) the kind of coins (d) the gap between books
3. 3.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a magnet (b) coins (c) two books (d) sheets of paper
5. 5.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) upward (c) less (d) not at all
6. 6.🔺 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 triangle (d) the heart shape
7. 7.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
8. 8.🏗️ Which of these gets its strength from a tube shape? (a) an eggshell (b) a bamboo pole (c) an old stone bridge (d) a roof frame
9. 9.🔍 Which is the odd one out? (a) a torn flat sheet (b) a flat tissue (c) one flat sheet (d) a zigzag-folded sheet
10. 10.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds make it wet (c) folds are magnetic (d) folds add glue
11. 11.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is kept the same. (a) True (b) False
12. 12.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) one flat sheet (c) rolled paper tubes (d) a zigzag-folded sheet
13. 13.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) a ruler (c) a battery cell (d) sheets of paper
14. 14.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) a ruler (d) turmeric powder
15. 15.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) yeast (c) a mirror (d) coins
16. 16.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
17. 17.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
18. 18.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) skip washing (c) wash your hands (d) lick your fingers
19. 19.⚖️ 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
20. 20.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) low and steady (c) high and wobbly (d) on top of a pet
21. 21.True or false: a battery cell is not needed for the paper bridge. (a) True (b) False
22. 22.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
23. 23.🏗️ Where does a hollow bird bone get its strength from? (a) triangles (b) arches and domes (c) tubes
24. 24.⚖️ 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 measure it (c) we change it
25. 25.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) a magnet (c) a ruler (d) two books
26. 26.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
27. 27.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we measure it (b) we change it (c) we keep it the same
28. 28.True or false: a ruler is needed for the paper bridge. (a) False (b) True
29. 29.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
30. 30.🔍 Which is the odd one out? (a) one flat sheet (b) a flat tissue (c) a torn flat sheet (d) paper with folded edges
31. 31.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge
32. 32.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is what we measure. (a) True (b) False
33. 33.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is the one thing we change. (a) False (b) True
34. 34.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) the same number of (c) more (d) fewer
35. 35.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) an electric tower (c) a hollow bird bone (d) a temple dome
36. 36.🏗️ Where does a roof frame get its strength from? (a) triangles (b) arches and domes (c) tubes
37. 37.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
38. 38.True or false: a battery cell is needed for the paper bridge. (a) False (b) True
39. 39.True or false: a balloon is not needed for the paper bridge. (a) True (b) False
40. 40.🧺 Do we need coins for the paper bridge? (a) needed (b) not needed

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