Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 370 · 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 shape of the paper”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🏗️ Which of these gets its strength from triangles? (a) a round pillar (b) a bridge truss (c) an eggshell (d) an old stone bridge
3. 3.🧺 Which of these is needed for the paper bridge? (a) a magnet (b) a balloon (c) a battery cell (d) coins
4. 4.🏗️ Where does a roof frame get its strength from? (a) triangles (b) tubes (c) arches and domes
5. 5.🌉 Which of these makes a strong bridge? (a) a wet flat sheet (b) a torn flat sheet (c) a flat tissue (d) a U-shaped channel
6. 6.True or false: a U-shaped channel makes a strong bridge. (a) False (b) True
7. 7.⚖️ Fair test — which paper shape holds the most coins? True or false: the shape of the paper is the one thing we change. (a) True (b) False
8. 8.⚖️ Fair test — which paper shape holds the most coins? True or false: coins it holds is the one thing we change. (a) True (b) False
9. 9.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds add glue (b) folds are magnetic (c) folds make it stiffer (d) folds make it wet
10. 10.True or false: rolled paper tubes makes a weak bridge. (a) False (b) True
11. 11.🌉 Does a flat tissue make a strong or a weak bridge? (a) strong bridge (b) weak bridge
12. 12.⚖️ 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 coins
13. 13.🔍 Which is the odd one out? (a) paper with folded edges (b) a U-shaped channel (c) a zigzag-folded sheet (d) a wet flat sheet
14. 14.🧺 Which of these is not needed for the paper bridge? (a) a ruler (b) a battery cell (c) coins (d) sheets of paper
15. 15.True or false: a temple dome gets its strength from arches or domes. (a) True (b) False
16. 16.🏗️ Where does an electric tower get its strength from? (a) triangles (b) tubes (c) arches and domes
17. 17.🌉 Does a U-shaped channel make a strong or a weak bridge? (a) strong bridge (b) weak bridge
18. 18.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
19. 19.🌉 Does paper with folded edges make a strong or a weak bridge? (a) strong bridge (b) weak bridge
20. 20.🔺 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 square (d) the heart shape
21. 21.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) sheets of paper (b) a balloon (c) a ruler (d) coins
22. 22.🌉 Which of these makes a weak bridge? (a) rolled paper tubes (b) paper with folded edges (c) one flat sheet (d) a zigzag-folded sheet
23. 23.True or false: yeast is needed for the paper bridge. (a) False (b) True
24. 24.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a ruler (b) yeast (c) two books (d) coins
25. 25.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) not at all (c) upward (d) less
26. 26.🔮 Predict: the gap between the books gets wider. The bridge holds ___. (a) more coins (b) fewer coins (c) the same coins (d) only water
27. 27.🏗️ Where does an old stone bridge get its strength from? (a) triangles (b) arches and domes (c) tubes
28. 28.⚖️ 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 kind of paper (d) the shape of the paper
29. 29.🥚 Why is an egg hard to crush when you press on its two ends? (a) its curved arch shape (b) it is magnetic (c) it is very hot (d) it is made of steel
30. 30.⚖️ 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
31. 31.True or false: a hollow bird bone gets its strength from a tube shape. (a) True (b) False
32. 32.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) a battery cell (b) sheets of paper (c) coins (d) two books
33. 33.🧺 Three of these are needed for the paper bridge. Which one is NOT needed? (a) two books (b) coins (c) sheets of paper (d) turmeric powder
34. 34.🔍 Which is the odd one out? (a) a torn flat sheet (b) one flat sheet (c) a zigzag-folded sheet (d) a wet flat sheet
35. 35.🌉 Does a zigzag-folded sheet make a strong or a weak bridge? (a) weak bridge (b) strong bridge
36. 36.True or false: paper with folded edges makes a weak bridge. (a) True (b) False
37. 37.🧺 Which of these is not needed for the paper bridge? (a) coins (b) two books (c) yeast (d) sheets of paper
38. 38.True or false: an eggshell gets its strength from arches or domes. (a) True (b) False
39. 39.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) rub your eyes (b) lick your fingers (c) wash your hands (d) skip washing
40. 40.🌉 Does rolled paper tubes make a strong or a weak bridge? (a) strong bridge (b) weak bridge

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