Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 755 · 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.🔍 Which is the odd one out? (a) paper with folded edges (b) a torn flat sheet (c) rolled paper tubes (d) a U-shaped channel
2. 2.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
3. 3.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) turmeric powder (c) sheets of paper (d) coins
4. 4.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) an eggshell (c) a round pillar (d) a temple dome
5. 5.⚖️ 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
6. 6.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) more (b) zero (c) fewer (d) the same number of
7. 7.🧺 Do we need a ruler for the paper bridge? (a) not needed (b) needed
8. 8.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) coins it holds (b) the shape of the paper (c) the gap between books
9. 9.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
10. 10.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
11. 11.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) high and wobbly (c) on a stool edge (d) low and steady
12. 12.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
13. 13.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) a temple dome (c) an electric tower (d) a bridge truss
14. 14.🛟 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
15. 15.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we change it (b) we measure it (c) we keep it the same
16. 16.🏗️ Where does a bridge truss get its strength from? (a) tubes (b) triangles (c) arches and domes
17. 17.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) less (b) not at all (c) upward (d) more
18. 18.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
19. 19.🧺 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
20. 20.True or false: a flat tissue makes a weak bridge. (a) True (b) False
21. 21.🧺 Which of these is needed for the paper bridge? (a) yeast (b) a magnet (c) two books (d) a balloon
22. 22.🌉 Does paper with folded edges make a strong or a weak bridge? (a) weak bridge (b) strong bridge
23. 23.🔺 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
24. 24.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) coins (b) sheets of paper (c) two books (d) a magnet
25. 25.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it wet (b) folds make it stiffer (c) folds add glue (d) folds are magnetic
26. 26.🏗️ Where does a temple dome get its strength from? (a) tubes (b) arches and domes (c) triangles
27. 27.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) paper with folded edges (c) rolled paper tubes (d) a flat tissue
28. 28.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) a temple dome (c) a hollow bird bone (d) a bridge truss
29. 29.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) tubes (c) arches and domes
30. 30.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a wet flat sheet (c) one flat sheet (d) a zigzag-folded sheet
31. 31.True or false: coins is needed for the paper bridge. (a) True (b) False
32. 32.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
33. 33.True or false: an old stone bridge gets its strength from triangles. (a) True (b) False
34. 34.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) the shape of the paper (b) the kind of coins (c) the gap between books (d) coins it holds
35. 35.🧺 Which of these is not needed for the paper bridge? (a) coins (b) turmeric powder (c) two books (d) a ruler
36. 36.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
37. 37.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) its curved arch shape (c) it is made of steel (d) it is very hot
38. 38.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) arches and domes (c) tubes
39. 39.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
40. 40.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it floats up (b) it turns to card (c) it sags and falls (d) it gets stronger

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