Paper Bridge STEM Challenge Worksheet

Science experiments lesson 26: Paper bridge challenge · Set 617 · 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.🌉 Which of these makes a strong bridge? (a) a U-shaped channel (b) one flat sheet (c) a torn flat sheet (d) a flat tissue
2. 2.🧺 Which of these is needed for the paper bridge? (a) a balloon (b) coins (c) a battery cell (d) a magnet
3. 3.True or false: a roof frame gets its strength from triangles. (a) True (b) False
4. 4.🧺 Which of these is needed for the paper bridge? (a) a battery cell (b) a ruler (c) yeast (d) turmeric powder
5. 5.🛟 Coins have been touched by many hands. After the experiment you should ___. (a) lick your fingers (b) wash your hands (c) skip washing (d) rub your eyes
6. 6.🌉 Does one flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
7. 7.True or false: sheets of paper is needed for the paper bridge. (a) True (b) False
8. 8.True or false: a bridge truss gets its strength from arches or domes. (a) True (b) False
9. 9.🧺 Which of these is not needed for the paper bridge? (a) turmeric powder (b) two books (c) a ruler (d) sheets of paper
10. 10.🏗️ Which of these gets its strength from triangles? (a) an eggshell (b) a temple dome (c) an old stone bridge (d) a bridge truss
11. 11.🌉 Does a torn flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
12. 12.True or false: a battery cell is not needed for the paper bridge. (a) False (b) True
13. 13.⚖️ Fair test — which paper shape holds the most coins? Which of these is what we measure? (a) coins it holds (b) the shape of the paper (c) the gap between books (d) where coins are placed
14. 14.🌉 Why does a zigzag-folded sheet hold more coins than a flat one? (a) folds make it stiffer (b) folds are magnetic (c) folds add glue (d) folds make it wet
15. 15.🥚 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
16. 16.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we measure it (b) we change it (c) we keep it the same
17. 17.🏗️ Which of these gets its strength from arches or domes? (a) a round pillar (b) an old stone bridge (c) a hollow bird bone (d) a bridge truss
18. 18.🌉 Which of these makes a weak bridge? (a) a flat tissue (b) a U-shaped channel (c) paper with folded edges (d) a zigzag-folded sheet
19. 19.🧺 Which of these is not needed for the paper bridge? (a) two books (b) a ruler (c) a balloon (d) coins
20. 20.⚖️ Fair test — which paper shape holds the most coins? Which of these is the one thing we change? (a) where coins are placed (b) coins it holds (c) the kind of paper (d) the shape of the paper
21. 21.🏗️ Where does a round pillar get its strength from? (a) arches and domes (b) tubes (c) triangles
22. 22.🔮 Predict: you put the coins in the middle instead of near the ends. The bridge bends ___. (a) more (b) less (c) upward (d) not at all
23. 23.True or false: a torn flat sheet makes a weak bridge. (a) True (b) False
24. 24.🏗️ Where does an electric tower get its strength from? (a) tubes (b) arches and domes (c) triangles
25. 25.🧺 Which of these is not needed for the paper bridge? (a) coins (b) a magnet (c) sheets of paper (d) a ruler
26. 26.⚖️ Fair test — which paper shape holds the most coins? True or false: the kind of coins is kept the same. (a) False (b) True
27. 27.🌉 Which of these makes a weak bridge? (a) a U-shaped channel (b) a zigzag-folded sheet (c) rolled paper tubes (d) one flat sheet
28. 28.True or false: a wet flat sheet makes a strong bridge. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) a flat tissue (b) one flat sheet (c) a wet flat sheet (d) rolled paper tubes
30. 30.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) zero (b) the same number of (c) more (d) fewer
31. 31.🌉 Does a wet flat sheet make a strong or a weak bridge? (a) strong bridge (b) weak bridge
32. 32.True or false: two books is needed for the paper bridge. (a) False (b) True
33. 33.🧺 Do we need a ruler for the paper bridge? (a) needed (b) not needed
34. 34.⚖️ 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 gap between books
35. 35.⚖️ 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 measure it (c) we keep it the same
36. 36.🏗️ Which of these gets its strength from triangles? (a) a temple dome (b) a bamboo pole (c) a round pillar (d) an electric tower
37. 37.🌉 Which of these makes a strong bridge? (a) one flat sheet (b) a zigzag-folded sheet (c) a torn flat sheet (d) a flat tissue
38. 38.🔍 What happens to a flat paper bridge with just a few coins on it? (a) it gets stronger (b) it turns to card (c) it sags and falls (d) it floats up
39. 39.🧺 Do we need sheets of paper for the paper bridge? (a) needed (b) not needed
40. 40.True or false: an electric tower gets its strength from a tube shape. (a) True (b) False

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