Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 52 · 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.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) a hollow bird bone (c) an old stone bridge (d) an electric tower
3. 3.🔍 Which is the odd one out? (a) rolled paper tubes (b) paper with folded edges (c) one flat sheet (d) a zigzag-folded sheet
4. 4.🏗️ Which of these gets its strength from arches or domes? (a) a bridge truss (b) a round pillar (c) a temple dome (d) a roof frame
5. 5.⚖️ 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
6. 6.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is magnetic (b) it is very hot (c) it is made of steel (d) its curved arch shape
7. 7.🧺 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) turmeric powder
8. 8.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a mirror (c) sheets of paper (d) a balloon
9. 9.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
10. 10.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a balloon (c) two books (d) a magnet
11. 11.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
12. 12.🌉 Which of these makes a strong bridge? (a) a zigzag-folded sheet (b) a torn flat sheet (c) one flat sheet (d) a wet flat sheet
13. 13.🧺 Do we need a magnet for the paper bridge? (a) needed (b) not needed
14. 14.True or false: a bridge truss gets its strength from triangles. (a) True (b) False
15. 15.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) only water (b) fewer coins (c) the same coins (d) more coins
16. 16.True or false: a U-shaped channel makes a weak bridge. (a) True (b) False
17. 17.🏗️ Where does a round pillar get its strength from? (a) triangles (b) arches and domes (c) tubes
18. 18.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
19. 19.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
20. 20.🏗️ Where does a roof frame get its strength from? (a) triangles (b) tubes (c) arches and domes
21. 21.⚖️ 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 shape of the paper (d) the kind of paper
22. 22.🔍 Which is the odd one out? (a) a wet flat sheet (b) a torn flat sheet (c) one flat sheet (d) a zigzag-folded sheet
23. 23.🏗️ Where does a bamboo pole get its strength from? (a) triangles (b) arches and domes (c) tubes
24. 24.🛟 How should the two books be placed for the paper bridge? (a) on top of a pet (b) on a stool edge (c) low and steady (d) high and wobbly
25. 25.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) wash your hands (b) rub your eyes (c) lick your fingers (d) skip washing
26. 26.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we change it (b) we keep it the same (c) we measure it
27. 27.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) a hollow bird bone (c) a roof frame (d) an eggshell
28. 28.🌉 Which of these makes a strong bridge? (a) a flat tissue (b) a torn flat sheet (c) one flat sheet (d) rolled paper tubes
29. 29.🌉 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
30. 30.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
31. 31.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) a zigzag-folded sheet (c) a U-shaped channel (d) a torn flat sheet
32. 32.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
33. 33.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
34. 34.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is kept the same. (a) True (b) False
35. 35.True or false: yeast is needed for the paper bridge. (a) False (b) True
36. 36.🧺 Do we need a balloon for the paper bridge? (a) needed (b) not needed
37. 37.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a wet flat sheet (c) a flat tissue (d) paper with folded edges
38. 38.🌉 Which of these makes a weak bridge? (a) a zigzag-folded sheet (b) rolled paper tubes (c) a flat tissue (d) a U-shaped channel
39. 39.🔍 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 gets stronger (d) it sags and falls
40. 40.🔺 Which shape do engineers use in bridges and towers because it keeps its shape under a push? (a) the star (b) the triangle (c) the heart shape (d) the square

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