Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 161 · 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.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
2. 2.🔍 Which is the odd one out? (a) a U-shaped channel (b) a flat tissue (c) rolled paper tubes (d) paper with folded edges
3. 3.True or false: a zigzag-folded sheet makes a weak bridge. (a) False (b) True
4. 4.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
5. 5.⚖️ 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 change it (c) we measure it
6. 6.🥚 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) its curved arch shape (d) it is magnetic
7. 7.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we change it (b) we measure it (c) we keep it the same
8. 8.🌉 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
9. 9.True or false: a wet flat sheet makes a strong bridge. (a) False (b) True
10. 10.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it sags and falls (c) it floats up (d) it turns to card
11. 11.🏗️ Which of these gets its strength from triangles? (a) a bamboo pole (b) a temple dome (c) an electric tower (d) a round pillar
12. 12.True or false: a bamboo pole gets its strength from a tube shape. (a) False (b) True
13. 13.🛟 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
14. 14.⚖️ 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 kind of coins (c) where coins are placed (d) the shape of the paper
15. 15.True or false: a hollow bird bone gets its strength from triangles. (a) False (b) True
16. 16.🌉 Which of these makes a strong bridge? (a) a torn flat sheet (b) a wet flat sheet (c) a U-shaped channel (d) a flat tissue
17. 17.True or false: yeast is needed for the paper bridge. (a) True (b) False
18. 18.🏗️ Where does an eggshell get its strength from? (a) tubes (b) triangles (c) arches and domes
19. 19.🧺 Do we need two books for the paper bridge? (a) not needed (b) needed
20. 20.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) sheets of paper (c) yeast (d) coins
21. 21.🏗️ Which of these gets its strength from a tube shape? (a) an electric tower (b) a temple dome (c) a round pillar (d) an old stone bridge
22. 22.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of paper is what we measure. (a) True (b) False
23. 23.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) fewer coins (b) the same coins (c) only water (d) more coins
24. 24.🔍 Which is the odd one out? (a) one flat sheet (b) a zigzag-folded sheet (c) a wet flat sheet (d) a torn flat sheet
25. 25.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is kept the same. (a) False (b) True
26. 26.⚖️ Fair test — which paper shape holds the most coins? True or false: the gap between books is kept the same. (a) False (b) True
27. 27.🧺 Which of these is needed for the paper bridge? (a) a mirror (b) a balloon (c) a battery cell (d) two books
28. 28.🌉 Which of these makes a weak bridge? (a) a wet flat sheet (b) a U-shaped channel (c) a zigzag-folded sheet (d) rolled paper tubes
29. 29.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) turmeric powder (c) a ruler (d) two books
30. 30.🧺 Which of these is needed for the paper bridge? (a) coins (b) yeast (c) a balloon (d) turmeric powder
31. 31.True or false: rolled paper tubes makes a strong bridge. (a) False (b) True
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.True or false: one flat sheet makes a weak bridge. (a) False (b) True
34. 34.🛟 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
35. 35.🏗️ Where does an electric tower get its strength from? (a) tubes (b) triangles (c) arches and domes
36. 36.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) an eggshell (c) a bridge truss (d) a roof frame
37. 37.🏗️ Where does a temple dome get its strength from? (a) triangles (b) tubes (c) arches and domes
38. 38.🧺 Do we need a magnet for the paper bridge? (a) not needed (b) needed
39. 39.True or false: two books is needed for the paper bridge. (a) True (b) False
40. 40.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) tubes (c) arches and domes

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