Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 194 · 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.🧺 Do we need sheets of paper for the paper bridge? (a) not needed (b) needed
2. 2.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) a zigzag-folded sheet (c) a U-shaped channel (d) one flat sheet
3. 3.🏗️ Where does a bamboo pole get its strength from? (a) arches and domes (b) tubes (c) triangles
4. 4.⚖️ 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
5. 5.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) two books (c) a mirror (d) a ruler
6. 6.🧺 Which of these is not needed for the paper bridge? (a) sheets of paper (b) two books (c) a ruler (d) a balloon
7. 7.🔍 Which is the odd one out? (a) a U-shaped channel (b) a zigzag-folded sheet (c) rolled paper tubes (d) a wet flat sheet
8. 8.⚖️ 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) where coins are placed (c) the gap between books (d) coins it holds
9. 9.True or false: a mirror is needed for the paper bridge. (a) False (b) True
10. 10.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it turns to card (b) it floats up (c) it sags and falls (d) it gets stronger
11. 11.True or false: a balloon is needed for the paper bridge. (a) True (b) False
12. 12.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) an eggshell (c) a bamboo pole (d) an electric tower
13. 13.🌉 Does a flat tissue make a strong or a weak bridge? (a) weak bridge (b) strong bridge
14. 14.🧺 Do we need yeast for the paper bridge? (a) needed (b) not needed
15. 15.True or false: a zigzag-folded sheet makes a strong bridge. (a) False (b) True
16. 16.🌉 Does one flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
17. 17.True or false: two books is not needed for the paper bridge. (a) True (b) False
18. 18.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
19. 19.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) a magnet (c) two books (d) coins
20. 20.🥚 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
21. 21.⚖️ Fair test — which paper shape holds the most coins? What do we do with “coins it holds”? (a) we keep it the same (b) we measure it (c) we change it
22. 22.True or false: paper with folded edges makes a strong bridge. (a) False (b) True
23. 23.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) the same coins (c) only water (d) fewer coins
24. 24.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) upward (b) more (c) not at all (d) less
25. 25.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a balloon (b) coins (c) two books (d) a ruler
26. 26.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) paper with folded edges (c) a torn flat sheet (d) a zigzag-folded sheet
27. 27.🏗️ Which of these gets its strength from arches or domes? (a) a bamboo pole (b) a temple dome (c) a hollow bird bone (d) a bridge truss
28. 28.True or false: an old stone bridge gets its strength from arches or domes. (a) False (b) True
29. 29.🏗️ Which of these gets its strength from triangles? (a) a roof frame (b) a round pillar (c) an old stone bridge (d) a temple dome
30. 30.⚖️ Fair test — which paper shape holds the most coins? Which of these is kept the same? (a) where coins are placed (b) coins it holds (c) the shape of the paper
31. 31.True or false: a zigzag-folded sheet makes a weak bridge. (a) True (b) False
32. 32.🧺 Do we need a battery cell for the paper bridge? (a) needed (b) not needed
33. 33.🌉 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
34. 34.True or false: rolled paper tubes makes a strong bridge. (a) True (b) False
35. 35.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we measure it (b) we keep it the same (c) we change it
36. 36.🧺 Do we need coins for the paper bridge? (a) not needed (b) needed
37. 37.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) coins (c) yeast (d) a ruler
38. 38.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the shape of the paper”? (a) we measure it (b) we keep it the same (c) we change it
39. 39.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) a U-shaped channel (b) rolled paper tubes (c) a zigzag-folded sheet (d) one flat sheet

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