Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 905 · 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? Which of these is what we measure? (a) the shape of the paper (b) coins it holds (c) the gap between books (d) the kind of paper
2. 2.🧺 Do we need a mirror for the paper bridge? (a) not needed (b) needed
3. 3.🏗️ Where does a hollow bird bone get its strength from? (a) arches and domes (b) triangles (c) tubes
4. 4.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a balloon (d) a ruler
5. 5.⚖️ 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
6. 6.🛟 How should the two books be placed for the paper bridge? (a) on a stool edge (b) on top of a pet (c) low and steady (d) high and wobbly
7. 7.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
8. 8.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
9. 9.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the gap between books”? (a) we keep it the same (b) we change it (c) we measure it
10. 10.True or false: two books is not needed for the paper bridge. (a) False (b) True
11. 11.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) two books (c) a magnet (d) yeast
12. 12.🔍 Which is the odd one out? (a) a torn flat sheet (b) rolled paper tubes (c) a flat tissue (d) a wet flat sheet
13. 13.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is very hot (c) it is made of steel (d) it is magnetic
14. 14.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) weak bridge (b) strong bridge
15. 15.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) more coins (c) only water (d) the same coins
16. 16.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) the kind of paper (b) the shape of the paper (c) where coins are placed (d) the gap between books
17. 17.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of paper”? (a) we keep it the same (b) we change it (c) we measure it
18. 18.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) turmeric powder (b) two books (c) sheets of paper (d) coins
19. 19.True or false: one flat sheet makes a weak bridge. (a) True (b) False
20. 20.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) a hollow bird bone (c) an eggshell (d) a roof frame
21. 21.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
22. 22.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
23. 23.🧺 Do we need two books for the paper bridge? (a) needed (b) not needed
24. 24.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) two books (c) coins (d) turmeric powder
25. 25.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) not at all (b) upward (c) less (d) more
26. 26.🔍 Which is the odd one out? (a) paper with folded edges (b) a wet flat sheet (c) a U-shaped channel (d) a zigzag-folded sheet
27. 27.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a zigzag-folded sheet (c) paper with folded edges (d) one flat sheet
28. 28.🏗️ Where does a bamboo pole get its strength from? (a) tubes (b) triangles (c) arches and domes
29. 29.🔺 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
30. 30.🏗️ Where does a temple dome get its strength from? (a) arches and domes (b) tubes (c) triangles
31. 31.🏗️ Which of these gets its strength from arches or domes? (a) a hollow bird bone (b) a bamboo pole (c) a round pillar (d) an old stone bridge
32. 32.⚖️ 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
33. 33.🛟 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
34. 34.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) weak bridge (b) strong bridge
35. 35.⚖️ 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 kind of coins
36. 36.True or false: sheets of paper is needed for the paper bridge. (a) False (b) True
37. 37.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds make it wet (c) folds are magnetic (d) folds make it stiffer
38. 38.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
39. 39.🏗️ Which of these gets its strength from a tube shape? (a) a round pillar (b) a temple dome (c) a bridge truss (d) a roof frame
40. 40.🧺 Do we need a balloon for the paper bridge? (a) not needed (b) needed

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